danielle069 danielle069

16-12-2021
Physics

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A man of mass 80 kg climbs a slope with a height of 5m. It takes him 10s to reach the top. a. How much work is done? b. Calculate the man's power

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Аноним Аноним

16-12-2021

Answer:

Explanation:

if he is moving at a constant velocity, the work changes the potential energy

W = PE = mgh = 80(9.8)(5) = 3,920 J

Power is the rate of doing work

P = W/t = 3920/10 = 392 W(atts)

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