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  • Is it possible that an object is in the state of accelerated motion due to external force acting on it, but no work is being done by the force. Explain it with an example.

Is it possible that an object is in the state of accelerated motion due to external force acting on it, but no work is being done by the force.  Explain it with an example.

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Solution.

Yes, it is possible. A body moves in a uniform circular motion is an example of accelerated motion. Consider the motion of the Earth around the Sun. The Earth is constantly moving in a circular path in a direction perpendicular to the gravitational pull of the Sun. So, the work done by the gravitational force is zero. Thus, the work done can be zero for an accelerated body.

 

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