Question

when we move a heavy box is work done​

Answer 1

Answer:

Yes , because The conditions for the work to be done are - 1) An object should have displaced.

2) Force should be applied.

Explanation:

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Answer 2

Answer:

yes,This requires a greater amount of internal contraction and release of our muscle fibers, and hence internal work in our bodies. But the work done on the box is zero since by moving in a straight line at constant speed, its energy is remaining the same.