a rocket with a mass of 4kg accelerates up from the ground at a rate of 20ft m/s^2, what is the drag force acting on the rocket if the thrust of the rockets is 150n

A conductor having no covering or electrical insulation There is absolutely no electrical insulation or coating on a conductor is bare.

Any object used as insulation in a building for thermal management is known as building insulation. The term refers to acoustic, fire, and impact insulation in addition to the majority of insulation used in buildings, which is for thermal purposes. Because it can accomplish several of these tasks at once, insulating materials are frequently used.

Building insulation is a crucial investment in both the economy and the environment. Insulation reduces the energy needed to heat and cool a building, as well as the thermal turbulence that its occupants experience. Adding more insulation to existing structures is a key strategy for reducing greenhouse gas emissions, particularly in regions where energy production is carbon-intensive.

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The sun is moving toward the constellation Cygnus, as discovered by Herschel when they counted stars in 683 regions around the Milky Way.

One of the significant discoveries made by Galileo in his Sidereus Nuncius in 1610 was that, when viewed through a telescope, some of the Milky Way resolved into a cluster of numerous stars.

The Sun is the darker star towards the image's center. Herschel has indicated its location in the image above. Herschel's research leads to the conclusion that the Sun is situated at or close to the Milky Way's center.

The Milky Way galaxy is the home of the Sun. About 100,000,000,000 stars are thought to be present in the Milky Way alone, according to astronomers.

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The work done by the tension in the string on the ball - tension does no work at all is the correct answer.

The forces tugging on the rope from either end cause the tension in a particular strand of string or rope. Keep in mind that force is defined as mass times acceleration. If the rope is stretched tightly, any change in the mass or acceleration of the objects it is supporting will result in a change in the tension of the rope.

A force known as tension is particularly effective on medium-length materials like rope and cable that are also flexible. A gravitational force still exists in tension. When the body is traveling upward, the tension is denoted by the formula T = W + ma. The thickness is the same as T = W - ma when the body descends.

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To know adiabatically process to calculate the entropy generation.

What is entropy?

Entropy is the amount of thermal energy per temperature unit in a system that cannot be used to carry out practical work. Entropy also functions as a stand-in for a system's molecular disorder or unpredictability because work is generated by ordered molecular motion.

What is an adiabatic process?

The thermodynamic process in which neither the system's expansion nor its compression causes heat to be transferred to its surroundings.

R- 134 a

at p₁= 100 psia, T₁= 100°f and p₂= 10 psia

using steam table A-13E

at p= 100psia, at T= 100°f

H₁= 118.90 btu/lbm s₁= 0.229 btu/lbm-°r

at it expanded adiabatically, therefore entropy will be constant

∴ h₁= h₂= 118.9 btu/lbm

∴ at p₂= 10 psia

using steam table A-13E

at p= 10 psia

T°f                          h(btu/lbm)                             s(btu/lbm-°r)

60                               115.67                                0.26531

80                               119.68                                0.27288

as we can see the h₂ is lie between 60°f and 80°f

by interpolation, we can find s₂

115.67-h₂/115.67-119.68=0.26531-s₂/0.26531-0.27288

115.67-118.9/115.67-118.9=0.26531-s₂/0.26531-0.27288

S₂= o.27288(btu/lbm-°R)

Entropy generation

Δs= s₂-s₁

=0.27288-0.229

Δs= 0.04388(btu/lbm-°R)

Therefore, the entropy generation  is 0.04388(btu/lbm-°R)

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The time it will take an automobile traveling at 62.5 km/h to become even with a car that is traveling in another lane at 41.0 km/h if the cars' front bumpers are initially a distance of 114 m apart is 19.1 seconds.

The time that it will take for the two cars traveling to at the same distance can be calculated below as follows:

Let the time it will take the second automobile be T.

the distance traveled by first car = d

distance traveled by second car = d + 114 m

Time taken by first car = d / 41.0

Time taken by second car = d + 114 / 62.5

The two times are equal, hence;

d / 41.0 = d + 114 / 62.5

41d + 4674 = 62.5d

21.5d = 4674

d = 217.4 m or 0.2174 km

distance traveled by second car = 0.2174 + 0.114

distance traveled by second car = 0.3314

Time taken by second car = 0.3314 / 62.5

time taken by second car = 0.0053 hours or 19.1 seconds

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The designer of a car simulator needs to study physics because their simulator must obey all the laws of physics. For instance, we can investigate if a car will flip if it drives on a circular track with a specific radius. Physics is also important in determining the cause of many vehicle accidents. As a result, physics is essential in the study of automotive motion.

Driving simulators, like flight simulators, immerse the driver in an artificial environment that is thought to be a legitimate alternative for one or more components of the actual driving experience. Driving simulators, on the other hand, support much more than driver instruction, in contrast to flight simulators, which were designed primarily for pilot training.

A driving simulator can alleviate these fears by illustrating what occurs when a motorist exceeds the speed limit and how this affects their response time. There is no way to educate kids this similar circumstances on the road without endangering everyone.

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A light, inextensible cord passes over a light, frictionless pulley with a radius of 8.9 cm. It has a 19 kg mass on the left and a 2.6 kg mass on the right, both hanging freely. The rate at which the two masses are accelerating when they pass each other is 7.44 m/s². The tension in the cord is 44.84 N.

What is tension of wire ?

In physics, tension is the force exerted on one or more bodies by ropes, cords, cables, or similar bodies. Anything that is pulled, hung, supported, or swung by a rope, cord, cable, etc., is subject to tension. Like all forces, stress can accelerate or deform objects.

Using Newton's Law to the mass m₁

m₁ g - T = m₁ a

where;

the tension T = m₁ (g -a) ----- Let this be equation (1)

For mass m₂,  

T - m₂ g = m₂ a   ------- Let this be equation (2)

equation both equation (1) and (2) together;

By rearrangement and collecting like terms;

a(m₂ + m₁) = g(m₁ - m₂)

Making acceleration (a) the subject of the formula:

a = 7.44 m/s²

According to equation (1), the cord's tension is:

Tension (T) = m1 (g -a)

T = 19(9.8 - 7.44) (9.8 - 7.44)

T = 19(2.36) (2.36)

T = 44.84 N

From this we can conclude that the speed at which the two masses accelerate as they pass each other is 7.44 m/s² and the tension in the cord as they pass is 44.84 N.

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Answer:

[tex]\textsf{a)} \quad x=\dfrac{25(7-\sqrt{13})}{3}=28.2870727\; \sf mm[/tex]

[tex]\textsf{b)} \quad V=379037.8082\; \sf mm^3[/tex]

Explanation:

[tex]\boxed{\begin{minipage}{5 cm}\underline{Volume of a rectangular prism}\\\\$V=w\:l\:h$\\\\where:\\ \phantom{ww}$\bullet$ $w$ is the width of the base. \\ \phantom{ww}$\bullet$ $l$ is the length of the base. \\ \phantom{ww}$\bullet$ $h$ is the height.\\\end{minipage}}[/tex]

Given:

The dimensions of the rectangular prism in terms of x are:

Substitute these values into the formula for volume to create an equation in terms of x:

[tex]\begin{aligned}\implies V&=(150-2x)(200-2x)x\\&=(30000-700x+4x^2)x\\&=4x^3-700x^2+30000x\end{aligned}[/tex]

To find the value of x that will give the maximum volume, differentiate the equation for volume.

[tex]\begin{aligned}\implies \dfrac{\text{d}V}{\text{d}x}&=3 \cdot 4x^{3-1}-2 \cdot 700x^{2-1}+30000x^{1-1}\\&=12x^2-1400x+30000\end{aligned}[/tex]

Set the derivative to zero and solve for x using the quadratic formula:

[tex]\implies x=\dfrac{-(-1400) \pm \sqrt{(-1400)^2-4(12)(30000)}}{2(12)}[/tex]

[tex]\implies x=\dfrac{1400 \pm \sqrt{520000}}{24}[/tex]

[tex]\implies x=\dfrac{1400 \pm \sqrt{40000 \cdot 13}}{24}[/tex]

[tex]\implies x=\dfrac{1400 \pm \sqrt{40000}\sqrt{13}}{24}[/tex]

[tex]\implies x=\dfrac{1400 \pm 200\sqrt{13}}{24}[/tex]

[tex]\implies x=\dfrac{175\pm 25\sqrt{13}}{3}[/tex]

[tex]\implies x=\dfrac{25(7\pm\sqrt{13})}{3}[/tex]

To determine which value of x will give the maximum volume, differentiate again:

[tex]\begin{aligned}\implies \dfrac{\text{d}^2V}{\text{d}x^2}&=2 \cdot12x^{2-1}-1400x^{1-1}+0\\&=24x-1400\end{aligned}[/tex]

Substitute both values of x into the second derivative:

[tex]x=\dfrac{25(7+\sqrt{13})}{3} \implies \dfrac{\text{d}^2V}{\text{d}x^2}=721.1102551 > 0\implies \sf minimum[/tex]

[tex]x=\dfrac{25(7-\sqrt{13})}{3} \implies \dfrac{\text{d}^2V}{\text{d}x^2}=-721.1102551 < 0\implies \sf maximum[/tex]

Therefore, the value of x which will give the maximum volume is:

[tex]x=\dfrac{25(7-\sqrt{13})}{3}=28.2870727\; \sf mm[/tex]

To find the maximum volume of the box, substitute the found value of x into the equation for volume:

[tex]\begin{aligned}\implies V_{\sf max}&=4\left(\dfrac{25(7-\sqrt{13})}{3}\right)^3-700 \left(\dfrac{25(7-\sqrt{13})}{3}\right)^2+30000 \left (\dfrac{25(7-\sqrt{13})}{3}\right)\\\\&=379037.8082\; \sf mm^3\end{aligned}[/tex]

The dimensions of the box with maximum possible volume will be:

The distance between the two asteroids, given that the gravitation force between them is 1030 N, is 3.59×10⁷ m

From Newton's law of universal gravity, we understood that the force of attraction / repulsion between two objects is given as:

F = GM₁M₂ / r²

Where

With the above formula, we can determine the distance between the two asteroids. This is illustrated below:

F = GM₁M₂ / r²

1030 = (6.67×10¯¹¹ × 1.41×10¹⁴ × 1.41×10¹⁴) / r²

Cross multiply

1030 × r² = 6.67×10¯¹¹ × 1.41×10¹⁴ × 1.41×10¹⁴

Divide both sides by 1030

r² = (6.67×10¯¹¹ × 1.41×10¹⁴ × 1.41×10¹⁴) / 1030

Take the square root of both sides

r = √[(6.67×10¯¹¹ × 1.41×10¹⁴ × 1.41×10¹⁴) / 1030]

r = 3.59×10⁷ m

Thus, the distance between them is 3.59×10⁷ m

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To use the kinetic friction force formula.

What is kinetic coefficient friction?

The proportion of contacting surfaces' kinetic friction forces to normal forces is known as the coefficient of kinetic friction.

What is acceleration?

Any process that causes a change in velocity is referred to as an acceleration. Since velocity depends on both speed and direction, you can only accelerate by changing either one or both.

Fn = 12kg* 9.81 m/s^2 = 117.7 N

since there is no acceleration, friction must equal the horizontal force

30N = 117.7*μ

μ = .255

Therefore, the coefficient of kinetic friction between the crate and the floor is 255.

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The average power input to the wheel during this time interval is (Iω²) / (2T).

option D is the correct answer

The average power input to the wheel during this time interval is the rate at which work is done by the wheel or the rate at which energy is expended.

Mathematically, the formula for average power is given as;

P = energy / time

Based on work - energy theorem,

work done by the wheel = change in energy of the wheel

Energy of the wheel due to the rotational torque is given as;

E = ¹/₂Iω²

where;

Power = E/T

power = (Iω²) / (2T)

where;

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In a parallel circuit, each component is subject to the same voltage.

In a series circuit, the current flowing through each component is the same, and the voltage across the circuit equals the sum of the voltages across each component. The voltage across each component in a parallel circuit is the same, and the total current is the sum of the currents flowing through all of the components. In a series circuit, the components share the supply voltage. The voltage of the supply is equal to the sum of the voltages across components connected in series. There are two or more paths for current to travel through in a parallel circuit. Each element of the parallel circuit has the same voltage applied to it. The total amount of current coming from the source

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The electric field should be applied is 3,694.5 .

As we know from electromagnetic theory we have a relation with electric field and magnetic field with force, which is

F = qE + qv x B

or we can write that

F = qE + qvBsinФ

To allow proton to move with the constant speed, we need to apply zero external force

It means F = 0

or we can write that

qE = -qvBsinФ

putting the appropriate values, we get

E = 4105 x 0.9

E = 3,694.5

Hence the magnitude of the electric field is 3,694.5 .

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The cylinder will reach the bottom first.

In this case, the body acceleration should be applied to the incline.

Therefore, the equation listed below should be utilized.

gsin / (1 + k2 / r2) = a

Here

K is the gyrating radius.

r is the radius, and

Now

in hoop

k = r

gsin / (1 + r2 / r2) equals a.

= g / 2 x sinθ

0.5 gsinθ

as cylinder

k² = r² /2

A is equal to gsin / (1 + r2 /2 r2).

= 2 / 3 g sinθ

= .67 g sinθ

We can observe that the cylinder is more responsible for the acceleration.

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The acceleration of an object with mass of 42.6kg when an unbalanced force of 112 N is applied to it is 2.63m/s² (option B).

Acceleration in physics is the amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).

The acceleration of a moving body can be calculated by dividing the force applied to move the object by its mass as follows:

a = F/m

According to this question, an object with mass of 42.6kg was moved by an unbalanced force of 112 N. The acceleration required can be calculated as follows;

a = 112N ÷ 42.6kg

a = 2.63m/s²

Therefore, 2.63m/s² is the acceleration of the object.

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480 W  is the power output of the secondary coil.

primary  coil current = ip = 4A

primary coil  voltage = vp = 120v

power out put of secondary coil

p = vi

   = 120v * 4A = 480W.

Power is the amount of work completed in a given amount of time. Watt (W), which is derived from joules per second (J/s), is the SI unit of power. Horsepower (hp), which is roughly equivalent to 745.7 watts, is a unit of measurement sometimes used to describe the power of motor vehicles and other devices.

The rate at which work is performed on an object is referred to as its power. Power is a temporal concept. It has to do with how quickly a task gets completed. The power equation is described below.

Power = Time + Work

P = W / t

The standard metric unit for power is a Joule/second, which is defined as the product of the standard metric units of work (the Joule) and time (the second).

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Speed of the command module relative to earth just after the separation is 5785.2Km/h

Velocity of speed of Vehicle = 5800km/h

mass = 4m + m = 5m

relative velocity = v2 - v1 = 74 km/h

v2 = 74 + v1

using conservation of momentum,

(5800)(5m) = 4m(v1) + m(v2)

V1 = 5785.2km/h

Momentum in Newtonian physics is defined as the sum of an object's mass and velocity, or more specifically, as its linear momentum or translational momentum. As a vector quantity with both a magnitude and a direction, it has both. The momentum of an item is expressed as follows: if an object has mass (m) and velocity (v), both of which are vector quantities.

The newton-second is a unit of measurement for momentum in the International System of Units (SI), and the kilograms metre per second (kg m/s) is its SI counterpart.

A body's momentum changes at a rate equal to the net force exerted on it, according to Newton's second law of motion. However, in any inertial frame, momentum is independent of the frame of reference.

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Answer:

The value moment of inertia the disk:

I = 6.4 kg·m²

Explanation:

Given:

Tk = 70 J

L = 30 kg·m² / s

_____________

I - ?

Rotational kinetic energy:

Tk = I·ω²/2

Angular velocity:

ω = √ (2·T / I)

Angular moment of a rotating body

L = I·ω = I·√ (2·T / I) = √ (2·T·I² / I ) = √ (2·T·I )

Raising to the second degree:

L² = 2·T·I

The value moment of inertia the disk:

I = L² / (2·T)

I = 30² / (2·70) ≈ 6.4 kg·m²

А) 6.4 кг·м²

If a girl is sitting on box and the girl weighs 10kg and the box weighs 50 kg, 30.61 N force will be needed to accelerate the box 5 m/s2

Total weight = 10 + 50 = 60 kg

weight = mg

60 = m * 9.8

m = 6.122 kg

Force = ?

acceleration = 5 [tex]m/s^{2}[/tex]

Force = mass * acceleration

        = 6.122 * 5 = 30.61 N

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Both depths will take the same amount of force to hold the apple underwater.

Both depths will take the same amount of force to hold the apple underwater. Although the pressure on the top of the apple will also increase as the depth does, the pressure on the bottom of the apple will be greater. No of the depth, the net difference will remain the same. The force will therefore remain constant.

Science has a precise definition for the word "force." A force of this magnitude can be described as either a push or a pull. A force is not something that an object "has in it" or "contains." A force from another object can affect something else. The idea of a force does not distinguish between living and non-living things.

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The self inductance of a solenoid is 157.9 * [tex]10^{-4}[/tex] H

Self inductance is defined as the property of a current-carrying coil that resists or prevents the current passing through it from changing.

• It is represented by L

• The unit for the self inductance is Henry denoted by H.

• Mathematically, it is L = ц[tex]N^{2}[/tex]A / l

where

ц is the vacuum permeability = 4π *  [tex]10^{-7}[/tex]

N is the number of turns of the solenoid = 100

A is the area of one loop of the solenoid = π [tex]r^{2}[/tex]

( r = 2m )

A = π [tex]r^{2}[/tex] = 4π

l is its length

So the self inductance of the solenoid will be

L = 4π *  [tex]10^{-4}[/tex] * 100*100 * 4π / (10)

L = 16π² *  [tex]10^{-4}[/tex] H

L = 157.9 *  [tex]10^{-4}[/tex] H

The self inductance of this solenoid is 157.9 *  [tex]10^{-4}[/tex] H

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The gravitational potential energy is equal to 8.1 Newton times 0.42 meters is 3.402 joules.

Gravitational potential energy refers to the energy that an object has or obtains when its position changes as just a result of being surrounded by a gravitational field. An energy that is linked to gravitation or the gravitational field is known as gravitational potential energy.

The energy that any object stores as a result of its position is known as gravitational potential energy.

The gravitational Potential energy is = mgh

Where m= mass

g = gravitational acceleration

h= height

The height of bag uplift = 42cm =0.42 meters

Now we have the weight which is 8.1 N

Weight in Newton = mass × gravitational acceleration

So if we have weight, Potential energy is = w×h

Therefore, after 42 cm of uplift, the gravitational potential energy is equal to 8.1 Newton times 0.42 meters, or 3.402 joules.

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Linear momentum is a vector quantity defined as  p=mv

where m is the body mass and v

its vector velocity. A body may undergo changes in linear momentum. Suppose a particle changes its initial momentum from pi to a final momentum pf, during a time Δt. We have

ΔpΔt=mvf−mviΔt=mΔvΔt

=m⟨a⟩

where ⟨a⟩=ΔvΔt

is an average acceleration, and we can identify the result above as the average force acting on the particle during the change in momentum:

⟨F⟩=ΔpΔt

Answer and Explanation:

A baseball has mass

m=0.145kg. Consider the x-axis defined in the figure below. We can write the ball's initial...

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Linear momentum is a vector quantity defined as  p=mv.

Units of mass times length over time squared are used to express the strength of a force. The most used unit in metric measurements is the newton (N), which is equal to one kilogram times one meter over one second squared.

its vector speed. Linear momentum can alter for a body. Let's say a particle undergoes a time-dependent shift in momentum from pi to pf. To date,

ΔpΔt=mvf−mviΔt=mΔvΔt

=m⟨a⟩

where where a=vt

is a typical acceleration, and the outcome shown above can be interpreted as the typical force exerted on the particle during the change in momentum:

⟨F⟩=ΔpΔt

A baseball has mass m=0.145kg. Consider the x-axis defined in the figure below. We can write the ball's initial.

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A solid disk of mass m and radius r undergoes an acceleration a The radius of the second disk is 4m.

The resistance of the body to acceleration (change of velocity) in the presence of a net force is also measured. The gravitational pull of an object to other bodies is also influenced by its mass.

The kilogramme serves as the mass basis unit in the SI (kg). In physics, mass is not the same as weight, despite the fact that weight is frequently measured using a spring scale as opposed to a balance scale and direct comparison with known masses to calculate mass. The lower gravity on the Moon causes an object to weigh less than it does on Earth, but it still has the same mass. Given that mass is a property of space rather than a force.

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4 is the drift speed of the conduction electrons in wire b.

I = neA [tex]V_{d}[/tex]

[tex]V_{d}[/tex] = [tex]\frac{I}{neA}[/tex]

    = [tex]\frac{I}{ne\pi r^{2} }[/tex]

[tex]V_{d}[/tex] [tex]\alpha[/tex]   [tex]\frac{1}{r^{2} }[/tex]

r' = 2r

A' = [tex]\pi 2r^{2}[/tex]

   = 4[tex]\pi r^{2}[/tex]

[tex]\frac{Vd'}{Vd}[/tex]= [tex]\frac{r^{2} }{2r^{2} }[/tex] = 1/4

[tex]V_{d}[/tex] = 4

Subatomic particles like electrons move in random directions all the time. When electrons are exposed to an electric field, they  move randomly but  slowly drift in one direction,  the direction of the applied electric field. The net speed at which these electrons drift is called the drift speed.  Curvature can be defined as follows:

The average speed of charged particles (eg electrons) in a material under the influence of an electric field. the SI unit of yard speed is m/s. It is also measured in [tex]m^2[/tex]/(V.s).

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Looking at your spectroscope, you see several discrete, clearly defined lines. The one possible source for this spectrum is fluorescent lamp.

What is fluorescent lamp?

A  fluorescent lamp is a low pressure mercury lamp or discharge bulb. When the light spectrum emitting from the fluorescent bulb fall on the spectroscope, it releases several discrete lines.

In this lamp, fluorescence source is used which produces visible light when it lights up.

Moreover, a fluorescent lamp alters electrical energy into chemical energy or light more efficiently than the incandescent lamp.

Simply put, fluorescent lamps are more efficient than other lamps and are mostly used for commercial and outdoor application as they use 75% less electricity.

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Tension force, Friction and gravity are acting on acrobat player while hanging in middle.

Tension is a contact force that is transmitted via a rope, thread, wire, or other similar material when pressures on the opposing ends are pulling on it. For example, the rope holding a tire swing to a tree limb is strained. The rope is pulled upward by a branch that is fighting the rope's tug tension, which is merely a pulling force, while the rope is pulled downward by gravity. Pushing on a loose rope creates no strain. As a result, the force of tension must always be represented in the direction that the string is pulling the object in a free-body diagram.

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