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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.
Answers (1)
False: This is true only for conservative forces, e.g., gravitational force. For example, in the 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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