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please help. thanks
please help me with these two questions... thanks
Hunter pushed a couch across the room. He did 800 J of work in 20 seconds.
The couch weighed 500 N. How much power did he have?
A. 16,000 W
B. 1.6W
C. 800 W
D. 40 W
Answer:
[tex]the \: answer \: for \: this \: question \: is \: d.40w[/tex]
Explanation:
Greetings !Given values Work(W)= 800Jtime(t) = 20 secondWeight = 500Nrequired value power(P) = ?Solution:
Firstly, recall the work-power equation
work=power*timew=p*tsubstitute known values to the equation
(800)=P*(20)Solve, for P (power)
P=40.0wHunter had a power of 40 W while pushing the couch across the room. The correct answer is D. The correct answer is 40W.
Given:
Work (W) = 800 J
Time (t) = 20 seconds
Power is the rate at which work is done or the rate at which energy is transferred. It is calculated using the formula:
Power (P) = Work (W) ÷ Time (t)
Let's calculate the power:
Power (P) = 800 ÷ 20
Power (P) = 40 W
Therefore, Hunter had a power of 40 W while pushing the couch across the room. The correct answer is D.
To know more about the work and power:
https://brainly.com/question/19382734
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