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State if each of the following statements is true or false. Give reasons for your answer. Work done in the motion of a body over a closed loop is zero for every force in nature.

Q7 (c)  State if each of the following statements is true or false. Give reasons for your answer.  Work done in the motion of a body over a closed loop is zero for every force in nature.

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False:-   This is true only for conservative forces e.g. gravitational force.  For e.g in case of frictional force (non-conservative force), the work done in a closed loop cannot be zero as energy is wasted throughout.

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