During the collision, friction was significant in the sense that it had an effect on the impulse of the collision.
The magnitude of the friction and the time it had to act are important factors in determining the effect of friction on the impulse of the collision.
In general, the greater the magnitude of the friction, the greater the effect on the impulse of the collision, and the longer the time that friction has to act, the greater the effect on the impulse of the collision.
Static friction occurs when the two objects in the collision are not moving relative to each other, and the magnitude of static friction depends on the surface roughness and the normal force between the two objects. The longer static friction has to act, the greater the total impulse of the collision.
Kinetic friction occurs when the two objects in the collision are moving relative to each other, and the magnitude of kinetic friction depends on the coefficient of kinetic friction between the two objects. The longer kinetic friction has to act, the greater the total impulse of the collision.
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a beam of protons travelling at 1.00 x 105 m/s has a current density of 1.00 ma/m2. what is the density of protons in the beam
The density of protons in the beam is 1.00 x 10¹⁰ protons per cubic meter.
This can be calculated using the equation density = current density / (charge of proton x velocity), where the charge of the proton is 1.60 x 10⁻¹⁹ Coulombs and the velocity is 1.00 x 10⁵ m/s.
The density of a beam of protons can be affected by a number of factors, such as the beam current, the particle energy, and the number of protons in the beam. As the beam current (the rate of protons moving through the beam) increases, the density of protons in the beam increases, and vice versa.
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An electric heater is rated 1500 W. How much energy does it use in 10 hours?
Solution.
Answer: Given: Power=1500W=1500/1000=1.5kW time=t=10hours. Energy=Power x t =1.5 X 10 =15kWh Hence, the energy consumed by the heater in 10h is 15kwH
Why are Cepheid variable stars important to astronomers? How is the information they impart any more or less useful than using stellar parallax?
Cepheid variable stars are important to astronomers because their periods of variability are related to their absolute luminosity.
A Cepheid variable is a particular kind of variable star that pulses radially and undergoes changes in temperature and diameter. With a well defined, constant period and amplitude, its brightness varies. Cepheid variable stars are a unique class of variable star because they are hot, massive, and have a propensity to pulse radially. They also have a tendency to change in diameter and temperature.
An objective way to quantify the radiant power that a light-emitting device emits over time is luminosity. The total quantity of electromagnetic energy released by a star, galaxy, or other celestial object in a given amount of time is measured as luminosity in astronomy.
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a flutist assembles her flute in a room where the speed of sound is 342 m/s . when she plays the note a, it is in perfect tune with a 440 hz tuning fork. after a few minutes, the air inside her flute has warmed to where the speed of sound is 344 m/s . part a how many beats per second will she hear if she now plays the note a as the tuning fork is sounded? express your answer in beats per second to two significant figures.
She will hear 442.57 beats per second, if she plays the note with the same tuning fork and the speed of sound is 344 m/s.
Initial speed of sound in the flute, v₁ = 342 m/s
Speed after increasing the temperature inside the flute, v₂ = 344 m/s
Frequency of the note of the tuning fork, f₁ = 440 hz or 440 per secs
Let the wavelength of the sound wave, = λ
Let the frequency after increasing the temperature, = f₂
We know the relationship, speed = wavelength(λ) × frequency
342 = λ × 440
λ = 342/440
λ = 0.777 m
When the speed is increased to 344 m/s,
344 = 0.777 × f₂
f₂ = 344/0.777
f₂ = 442.57
So, she will hear 442.57 beats per second.
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if two successive overtones of a vibrating string are 300 hz and 350 hz , what is the frequency of the fundamental?
By applying the fundamental frequency concept, it can be concluded that the frequency of the fundamental is 50 Hz.
The fundamental frequency is the lowest frequency of a periodic waveform counting from zero.
At the [tex]n^{th}[/tex] harmonic, the frequency is n times the fundamental frequency.
fₙ = nf₁ , where
f₁ = fundamental frequency
We have two successive overtones, let's denote them with fₙ and fₙ₊₁. The difference between their frequencies is given by:
fₙ₊₁ - fₙ = (n+1)f₁ - nf₁
= nf₁ + f₁ - nf₁
= f₁
It implies that the difference is equal to the fundamental frequency.
Now we can use this conclusion to calculate the fundamental frequency of the string:
f₁ = fₙ₊₁ - fₙ
= 350 - 300
= 50 Hz
Thus, the frequency of the fundamental is 50 Hz.
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A ga at a temperature of 50°C i under a preure of 700 MM Hg what will the preure be at 30°C auming the volume tay contant
The pressure will 657 MM Hg.
The relationship between pressure and temperature for a fixed volume of an ideal gas can be described by the Ideal Gas Law: PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature in Kelvin.
P1 = (700 mm Hg) x (101.3 kPa / 1 mm Hg) = 70,910 Pa
T1 = (50 + 273.15) K = 323.15 K
T2 = (30 + 273.15) K = 303.15 K
P2 = (70,910 Pa) x (303.15 K / 323.15 K) = 65,688 Pa
Therefore, the pressure at a temperature of 30°C while keeping the volume constant would be 65,688 Pa, which is equivalent to 657 mm Hg.
Since the volume is constant in this case, we can see that the pressure is directly proportional to the temperature. Therefore, if we decrease the temperature by 20°C, the pressure will also decrease by a factor of (T2/T1)(1-γ), where γ is the adiabatic index of the gas. In reality, the pressure will not decrease exactly as calculated using the Ideal Gas Law, since the gas is not an ideal gas and the volume may not remain constant. However, the Ideal Gas Law provides a useful approximation in many situations.
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Three equal positive charges are placed on the x-axis, one at the origin, one at x=2m and the third one at x=4m. Of the following points, which has the greatest magnitude electric field?
a. x = 1 m
b. x = 3 m
c. x = 5 m
d. The electric field has the same magnitude at all three positions.
The point with the greatest magnitude electric field is "x = 1 m". Correct option is a.
Electric field is a vector quantity that describes the force experienced by a unit positive charge placed at a particular point in space. The magnitude of the electric field at a point is proportional to the force experienced by a unit positive charge placed at that point.
In this problem, the electric field at a point on the x-axis is given by the sum of the electric fields produced by each of the three positive charges. Since each charge produces an electric field that decreases with distance, the electric field produced by a single charge will be strongest at points closest to that charge.
Therefore, the point with the greatest magnitude electric field will be the one that is closest to the charge that produces the strongest electric field. In this case, that charge is the one at the origin (x = 0 m), so the point with the greatest magnitude electric field will be x = 1 m.
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water flows through a horizontal pipe at a speed of 15 m/s and pressure 4105 pa. the pipe widens and the water speed drops to a 5 m/s. what is the pressure in the wider section of the pipe?
The pressure in the wider section of the pipe is 104105 pa.
Velocity at the thinner section, v₁ = 15 m/s
Velocity at the wider section, v₂ = 5 m/s
The pressure at the thinner section, p₁ = 4105 pa
Let the pressure at the thinner section, = p₂
Density of water, ρ = 1000 kg/m³
By applying Bernoulli's theorem for horizontal pipe
h₁ + p₁ + 0.5ρv₁² = h₂ + p₂ + 0.5ρv₂²
For horizontal pipe h₁ = h₂
4105 + 0.5×1000×15² = p₂ + 0.5×1000×5²
p₂ = 4105 + 112500 - 12500
On solving p₂ = 104105 pa
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You break a piece of Styrofoam packing material, and it releases lots of little spheres whose electric charge makes them stick annoyingly to you. If two of the spheres carry equal charges and repel with a force of 22 { mN} when they're 16 { mm} apart, what's the magnitude of the charge on each?
The magnitude of the charge on each sphere can be calculated using Coulomb's Law, which states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
In this case, we can rearrange the equation to solve for the charge, Q:
Q = √(Fd2/k),
where F is the force (22 mN), d is the distance (16 mm), and k is Coulomb's constant (8.99 x 109 Nm2/C2). Plugging in the values, we get:
Q = √(22 x 10-3 N x 16 x 10-3 m2/8.99 x 109 Nm2/C2)
Q = 0.087 C.
Therefore, the magnitude of the charge on each sphere is 0.087 C.
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if a car is traveling north at 55 mi/h, and the wind is blowing west at 20 mi/h, the resultant velocity of the car will be
The resultant velocity of the car will be: 58.52 mi/h
What is velocity?It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).
The formula and procedure we will use to solve this problem is:
vr = √(va² + vb²)
Where:
vr = resultant velocityva = velocity avb = velocity bInformation about the problem:
v(car)= 55 mi/hv(wind)= 20 mi/hvr=?Applying the resultant velocity formula we get:
vr = √[(55 mi/h)² + (20 mi/h ²)]
vr= √3425 mi²/h²
vr= 58.52 mi/h
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why are there fewer glaciers in the southern hemisphere compared to the northern hemisphere
Southern hemisphere has fewer number of glaciers as compared to the northern hemisphere as the southern hemisphere due to the lesser amount of landmass.
The northern hemisphere, especially near the north pole has a large amount of ice sheets. The large amount of glaciers are attributable to its larger land mass.
The southern hemisphere, especially near the south pole and the continent of Antarctica has glaciers and ice sheets but the amount of glaciers found in the southern hemisphere are lesser in number as compared to northern hemisphere. This is because the southern hemisphere has a lesser landmass as compared to norther hemisphere and has more ocean.
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why does fabric convertible roof flow upward
The fabric of the convertible roof of the car flows upward as the The air pressure inside the car is greater than the pressure outside.
The Bernoulli's equation, as we are all aware, states that for a fluid flowing without resistance or turbulence, the product of the fluid's kinetic energy density, gravitational potential energy density, and pressure P is a constant.
The following is what the Bernoulli equation for airflow over and around any surface says. Lower velocity air flow regions have higher pressure and the contrary. Consider the fact that the air is travelling at varying rates both outside and inside the convertible. The air inside the convertible is moving more quickly than the air outside.
A pressure zone is produced as a result of the difference in pressures between the convertible's interior and exterior. The convertible roof bulged upwards, which is why this area, which is placed just below the surface of the roof, is there.
The question is incomplete. The complete question is 'Why does the fabric convertible roof of the car flow upward when the car is moving?'
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etsyven with the best and largest telescopes, we can't see all the stars in the milky way galaxy, even though these same telescopes can show us other galaxies. why is that?
This is because the Milky Way Galaxy is incredibly large and contains an estimated 200-400 billion stars, which is too many to be seen from Earth with the current technology.
Furthermore, the Milky Way is also estimated to be 100,000 light years across, meaning that even if we could see all the stars at once, the distant stars would be too faint to be seen from Earth.
To put it into perspective, if we could see all the stars, it would look like a giant, fuzzy patch of light in the night sky.
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to recharge a 15.0 v battery, a battery charger must move 4.51×105 c of charge from the negative terminal to the positive terminal. how much work is done by the battery charger?
67.65 x 10^5J work is done by the battery charger to recharge a 15.0 v battery, a battery charger must move 4.51×105 c of charge from the negative terminal to the positive terminal.
Given the voltage of battery (V) = 15V
The charge in battery (q) = 4.51×10^5C
The charge moves from negative terminal to the positive terminal.
Let the work done by the battery charger = W
We know that the work done = voltage x charge.
Such that W = qV
W = 15 x 4.51×10^5 = 67.65 x 10^5J
Hence the required work done by the battery charger to move the charge from negative terminal to positive terminal is 67.65 x 10^5J.
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in highway traffic flow studies, it is found that the average speed (miles per hour) depends on the 1d density of cars (vehicles per mile, or passenger cars per mile per lane (pcpmpl)). from the plot it is seen that there are two linear regions. below a density of 50 vpm the speed is nearly constant, and above it decreases linearly with density. a. assume each car carries a charge of 1 mc. what is the current at 50 vpm?
The current in a highway traffic flow study at a density of 50 vehicles per mile (vpm) or passenger cars per mile per lane (pcpmpl) can be calculated by dividing the charge of each car by the average speed. Assuming each car carries a charge of 1 mc, the current at 50 vpm would be calculated as follows:
Current = 1/Average Speed
At 50 vpm, the average speed is nearly constant, so the current would be equal to 1/Average Speed. This can be simplified to 1/50, so the current at 50 vpm would be 0.02 mc.
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the chains of a swing on a playground swing set are 3.2 m long. what is the period of this swing? express your answer to two significant figures and include the appropriate units.
The period of a swing is determined by the length of the chain. For a playground swing set with a chain length of 3.2 m, the period of the swing can be calculated using the formula:
T = 2π√(L/g), where L is the length of the chain and g is the acceleration due to gravity (9.8 m/s2).
This gives a period of T = 2.59 s, expressed to two significant figures.
The length of the chain on a playground swing set determines the size of the arc of the swing and thus the period of the swing. The longer the chain, the greater the arc and the longer the period of the swing.
As the chain length increases, the period of the swing will increase as well. For a playground swing set with a chain length of 3.2 m, the resulting period is 2.59 s.
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a baseball player hit a baseball with a bat. the mass of the baseball is 0.09 kg. the baseball accelerates at 2,800 m/s2. what is the net force, to the nearest newton, that accelerates the baseball.
The net force that accelerates the baseball with the mass of 0.09 kg and with the acceleration of 2,800 m/s² is equal to 252 newtons.
Force that acts on an object can create acceleration. We know this from Newton's second law of motion, which is a = F/m, where a is acceleration, F is force, and m is mass. The equation means that the larger the force or the smaller the mass, the larger the acceleration, and the smaller the force or the larger the mass, the smaller the acceleration.
We can rearrange the equation into F = ma. This means that force is equal to the mass times the acceleration. Given that the mass is equal to 0.09 kg and the acceleration is equal to 2,800 m/s², the net force is equal to
F = ma
F = 0.09 kg · 2,800 m/s²
F = 252 kg · m/s² = 252 N.
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Identity the various levels of atmosphere
consider a copper rod that is 3.14 meters long, 2 cm in diameter, and has an electrical resistivity of 2x10-6 ohm-cm. what is the electrical resistance of the rod? consider a copper rod that is 3.14 meters long, 2 cm in diameter, and has an electrical resistivity of 2x10-6 ohm-cm. what is the electrical resistance of the rod? 5x10-5 ohm 2x10-4 ohm 2x10-6 ohm 5x10-6 ohm
The electrical resistance of the rod is approximately A: 5x10^-5 ohm.
The Electrical Resistance of a Rod can be Calculated using the following Formula:R = ρ * L / A,
where R is the resistance, ρ is the electrical resistivity, L is the length, and A is the cross-sectional area.
Using this formula:
A = π * (d/2)^2, where d is the diameter
R = 2x10^-6 * 3.14 * 10^2 / (π * (2/2)^2)
R = 2x10^-6 * 3.14 * 10^2 / (π * 1)
R = 2x10^-6 * 314 / π
R = 2 * 314 / (π * 10^-6)
R ≈ 5x10^-5 ohm
So, the electrical resistance of the rod is 5x10^-5 ohm.
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you have learned where earth is in relation to the sun, other planets and galaxies. based on what you learned, select all of the correct statements from the following list.
The correct statements are The Milky Way is a spiral galaxy, The Sun is a star, Earth and most of the other planets orbit the Sun in nearly circular elliptical orbits, Galaxies are composed of billions of stars, Clouds, filaments, and walls are structures within galaxies.
The Milky Way is indeed a spiral galaxy, which means it has a flat disk-like structure with a central bulge and spiral arms. It is one of the many galaxies in the observable universe, each of which contain billions of stars, dust, and gas. Our Sun is one of these stars, located in the outer reaches of the Milky Way's disk. The Sun is the center of our solar system, and Earth and most of the other planets orbit around it in nearly circular elliptical orbits.
Galaxies can have various shapes, ranging from elliptical to spiral, and their structures can be described as clouds, filaments, and walls. Clouds refer to large concentrations of gas, dust, and stars that are loosely bound together. Filaments are elongated structures composed of gas, dust, and dark matter, and walls are large, dense regions of stars and galaxies that are separated by voids. These structures are important in our understanding of how galaxies form and evolve over time.
The statement "The Sun is not part of the Milky Way" is incorrect. The Sun is part of the Milky Way galaxy.
The statement "Earth rotates around the Sun, which is the reason we see the Sun rise and set" is incorrect. Earth rotates on its axis, which causes the appearance of the Sun rising and setting. The Earth's orbit around the Sun is much slower and causes the changing of the seasons, not the daily rising and setting of the Sun.
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The complete question is:
You have learned where Earth is in relation to the sun, other planets and galaxies. Based on what you learned, select all of the correct statements from the following list. The Milky Way is a spiral galaxy. The sun is a star. The sun is not part of the Milky Way. Earth and most of the other planets orbit the sun in nearly circular elliptical orbits. Clouds, filaments, and walls are structures within galaxies. Earth rotates around the sun, which is the reason we see the sun rise and set. Galaxies are composed of billions of stars.
terry runs five miles every morning. how many yards does he run?
Terry runs 8800 yards, if he runs five miles every morning.
1 mile is equals to 1760 yeards
1 mile = 1760 yards
So 5 miles = 1760 × 5 = 8800 yards
So he runs 8800 yards every morning.
Miles: A mile is a unit of length or distance in the imperial and US customary systems of measurement. It is currently described as 1760 yards, 5,280 feet, or exactly 1,609.344 meters. It is denoted by mi or m.
Yards: This is a unit of measurement which is equal to 3 feet or 91.4 cm. This unit is mostly used by English-speaking countries.
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A mother of four children plans to distribute 35 identical pieces of Cadbury chocolate bars among her children based on the number of minutes they spent doing household chores. If she uses the Hamilton method, what will be the fair way to divide the chocolate bars?
She can use the Hamilton method to divide Cadbury chocolate bars based on how much time they spent on household chores by adding total chore time, and then divide total chocolate bars by total chore time to find bar/minute of work, which will then be distributed.
The Hamilton method is a way of fairly dividing a set of items among a group of people based on the amount of work each person has done.
In this case, the mother plans to distribute 35 identical Cadbury chocolate bars based on the number of minutes each child spent doing household chores. To do this, she would first add up the total minutes of chores done by all four children. Then, she would divide the total number of chocolate bars by the total minutes of chores done to find the number of chocolate bars per minute of work. Finally, she would give each child a number of chocolate bars equal to the number of minutes of chores they completed multiplied by the number of chocolate bars per minute of work. This would result in a fair distribution of the chocolate bars based on the amount of work each child did.
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i am sitting 2.37 m from a speaker listening to some music. how close to the speaker should i sit if i want the sound intensity of the music to be 11.5 db louder?
0.623 meters from the speaker to achieve a sound intensity 11.5 dB louder than the current position.
The inverse square law states that the sound intensity decreases as the square of the distance from the source increases. Mathematically, it can be expressed as:
I₂ = I₁ × (r1/r₂)²
where:
I₁ is the initial sound intensity,
I₂ is the desired sound intensity,
r₁ is the initial distance, and
r₂ is the desired distance.
In this case, the sound intensity is 11.5 dB louder, which corresponds to a factor of [tex]10^(11.5/10) = 14.125[/tex] in terms of intensity.
I₂ = 14.125 × I1
Now, set up the equation using the inverse square law:
14.125 × I₁ = I₁ × (r₁/r₂)²
14.125 = (r₁/r₂)²
Taking the square root of both sides:
[tex]\sqrt{14.125}[/tex]= r₁/r₂
Solving for r₂ (desired distance), we have:
r₂ = r₁ / [tex]\sqrt(14.125)[/tex]
Substituting the given distance r₁ = 2.37 m into the equation, calculate r₂:
r₂ = 2.37 / [tex]\sqrt{(14.125)}[/tex]
= 0.623 m
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an object is subjected to an applied upward force of 10 lbf. the only other force acting on the object is the force of gravity. the acceleration of gravity is 32.2 ft/s2. if the object has a mass of 50 lb, determine the net acceleration of the object, in ft/s2. is the net acceleration upward or downward?
Net acceleration of an object refers to the total acceleration experienced by the object, taking into account all the forces acting on it.
It is the vector sum of all the individual accelerations caused by each force.
Net acceleration represents the rate of change of velocity of an object and determines the direction and magnitude of its motion.
If the net acceleration is upward, the object is accelerating upward, and if it is downward, the object is accelerating downward.
Net acceleration can be calculated using Newton's Second Law of Motion:
Force upward is 10 lbf
A = F/m = 10/50 = 0.2 m/s2 = 0.656 ft/s^2 of upward acceleration.
Downward acceleration = 32.2 feet per second.
Net acceleration is equal to g - a, which is 32.2 ft/s^2 - 0.656 ft/s2 = 31.544 ft/s^2.
Net downward acceleration is present.
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First come first serve, solve it properly and get points.
Answer:
Explanation:
Box 1: heat, metals, independent
Box 2: metals, insulators, dependent
Box 3: attracted, metals, independent
a 7.00 g bullet, when fired from a gun into a 0.80 kg block of wood held in a vise, penetrates the block to a depth of 6.40 cm. this block of wood is next placed on a frictionless horizontal surface, and a second 7.00 g bullet is fired from the gun into the block. to what depth will the bullet penetrate the block in this case?
Explanation:
To determine the depth to which the bullet will penetrate the block in the second case, we need to know the initial velocity of the bullet and the coefficient of restitution of the block. The coefficient of restitution is a measure of how much energy is lost during an impact and it depends on the properties of the block and the bullet. Without this information, we cannot calculate the depth of penetration.
nate is driving to see his grandmother. if he drives at a constant speed of 40 km/h, he will arrive 1 hour late. if he drives at a constant speed of 60 km/h, he will arrive 1 hour early. at what constant speed should he drive to arrive just in time?
At constant speed of 48 km/h should he drive to arrive just in time.
What is constant speed?A thing is said to be moving at a constant speed when it covers the same distance in the same amount of time. When moving at a constant speed, an object covers a predetermined distance in the same amount of time. S = dt is a formula that can be used to express the speed.
Let distance be x
and time which he will arrive at right time be t
We know that speed = distance/time
so,
40 = x/t+1
x = 40(t+1)
and
60 = x/t-1
x = 60(t-1)
As x is same in both case lets cancel it out
60(t-1) = 40(t+1)
60t -60 = 40t +40
60t - 40t = 40 +60
20t = 100
t = 100/20
t = 5 hours
Now for distance
x = 40(5+1)
x = 40(6)
x = 240 km
Constant speed = 240/5
= 48 km/h
Thus, at constant speed of 48 km/h should he drive to arrive just in time.
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Explain what happens when a current flows in the low-current circuit (it is related to electromagnets)
Answer: A current flowing in a low-current circuit can generate an electromagnet. Electromagnets work by using an electric current to produce a magnetic field. When a current flows in a low-current circuit, it creates a magnetic field around the wire that is proportional to the amount of current flowing through the wire. This magnetic field can then be used to generate useful work, such as lifting a heavy object or generating a magnetic field for other purposes.
In a low-current circuit, the magnetic field produced is relatively weak compared to other types of electromagnets, but it still serves a purpose. For example, it can be used in relays, switches, and other electrical components that require a small amount of magnetic force to operate. Additionally, low-current circuits can be used to generate low-power signals or to create small, specialized electromagnets.
Overall, the generation of an electromagnet in a low-current circuit demonstrates the relationship between electrical current and magnetic fields, and highlights the importance of electromagnetism in a wide range of applications and technologies.
Explanation:
can generate an electromagnet.
MY
Explanation:
two objects, with different sizes masses and tempratures are placed in thermal contact. in which direction does the energy tracel
Two objects, with different sizes, masses, and temperatures are placed in thermal contact. The direction of flow of energy is from the hotter body to the cooler body.
Heat is a form of energy that gets transformed from one body to another. This transfer of energy in the form of heat or thermal contact mainly occurs from the body with more heat energy or higher temperature to the body with lower heat energy or low temperature. Suppose a hotter body and a cooler body are kept in contact with each other, then heat flows from the hotter to the cooler body. Hence when two objects with different temperatures are placed in thermal contact, then heat energy flows from the object with a higher temperature to the object with having a lower temperature. Different sizes and masses do not matter in the heat or energy flow.
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a ball is thrown downward from the top of a building with an initial speed of 30 m/s. it strikes the ground after 2.0 s. how high is the building, assuming negligible air resistance?
The height of the building is 40.4 m.
The height of the building can be determined using the equation for vertical motion with constant acceleration.
The acceleration due to gravity is -9.8 m/s^2.
The equation for vertical motion with constant acceleration is:
y = v0t + 1/2at^2
where y is the height of the building,
v0 is the initial velocity,
t is the time, and
a is the acceleration.
We are looking for the height of the building, so y is the unknown variable. We know the initial velocity (v0 = 30 m/s), the time (t = 2.0 s), and the acceleration (a = -9.8 m/s^2).
Plugging in the values, we get:
y = 30 m/s * 2.0 s + 1/2 * -9.8 m/s^2 * (2.0 s)^2
= 60.0 m - 19.6 m
= 40.4 m
For more questions on equation for vertical motion
https://brainly.com/question/27526920
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