a 92 kg person uses 2.0m steps for exercise. how much energy does it take to...

Question

Question

a 92 kg person uses 2.0m steps for exercise. how much energy does it take to climb each step .

what is the power needed if it takes 0.50s time for each step to climb?

Answer 1

Answer #1

Mass (m) = 92kg

Step Hight (H) = 2 meter

Energy taken is equal to work done agains gravitational field.

E = mgh = 92x9.8x2

E = 1803.2 Joule

(b) power (P) = E/t

P = 1803.2/0.50

P = 3606.4 Watt

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Answer 2

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