50 J of work was performed in 20 seconds. How much power was used to do this task? A. 0.4 W B. 2.5 W C. 4 W D. 24.5 W

asked May 3, 2018 158k views

1 vote

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7 votes

Power = W/t
Therefore 50/20 = Power
So... Power is 2.5W

Mjfgates answered May 5, 2018

5.3k points

3 votes

Power = work/time

P = 50/20

P = 2.5 watts

hope this helps :)

Jtsnr answered May 8, 2018

by Jtsnr

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