A Boy Weighing 50Kg Climbs Up A Vertical Height Of 100M. Calculate The Amount Of Work Done By Him. How Much Potential Energy Does He Gain (G=9.8M/S 2)

Given:

Weight of boy, m = 50kg

Height, h = 100m

Since the boy does not move anything with his force, therefore, the work done by him is zero.

Work done on the boy = Gain in potential energy.

Potential Energy (P.E) = mgh

⇒50 * 9.8 * 100

⇒49 KJ.

Gained potential energy (P.E) by the boy is 49 KJ.

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