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Sam did 480 J of work when moving a bag with a mass of 38 kg. He did the work in 4 minutes. What was the power output?

A.442 W
B.20 W
C.120 W
D.2 W

Respuesta :

I got c I'm not sure tho
Blacklash

Answer:

Option D is the correct answer.

Step-by-step explanation:

We have expression for power,

       [tex]\texttt{Power}=\frac{\texttt{Work}}{\texttt{Time}}[/tex]

Work done, W = 480 J

Time taken, t = 4 minutes = 4 x 60 = 240 seconds.

[tex]\texttt{Power}=\frac{\texttt{Work}}{\texttt{Time}}=\frac{480}{240}=2W[/tex]

Option D is the correct answer.

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