Question

A body is acted upon by a force. State two conditions under which the work done could be zero.​

Answer 1

Answer:

Solution. Two conditions when the work done is zero are: (i) When there is no displacement (S=0) and, (ii) When the displacement is normal to the direction of the force (θ=90o).

Answer 2

Answer:

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Explanation:

Two conditions when the work done is zero are: (i) When there is no displacement (S=0) and, (ii) When the displacement is normal to the direction of the force (θ=90o).