Question

The work done in lifting a box , on to a platform does not depend upon how fast it lifted up. Explain your answer giving proper reason.

Answer 1

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The work done (W) in lifting a box through a distance S against the gravitational force (F) is given by W = FS.

Hence , it is obvious that it is independent of the rate at which the box is lifted.

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Answer 2

Work depends only on force and its displacement produced ..

It does not depend on time or any rate...

However,the rate(time) is required in case of power..

In case of energy,power it is independent...

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