3000 J of work are done by an elevator on a man lifting him to a height of 2.5 m in 0.4 seconds

The energy that the man has gained in being lifted is 3000J which is in the form of potential energy.

Explanation:

Given:

Work done, W = 3000J

Height, h = 2.5m

Time, t = 0.4 seconds

Energy gained = ?

As the man gets lifted, it gains potential energy.

Potential energy will be equal to the work done by the elevator.

We know,

potential energy = mgh

Thus, the energy that the man has gained in being lifted is 3000J which is in the form of potential energy.

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a. 254 in.2

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