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a man whose mass is 75 kg walks up to 10 steps, each 20 cm high, in 5sec .what is the work done?

Sra

• physics -

The work done does not depend upon how long it takes. (But the POWER does). Work is the product of mass, the acceleration of gravity, and the elevation gain.

W = M g H = 75 kg*9.8 m/s^2*2.0 m
= 1470 Joules

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