Physics
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.
Force
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Answer
Yes, it is possible.
For example, when an object is moving in a circular path due to centripetal force acting on it.
At any instant of time, a constant acceleration due to the centripetal force acts on the object along the radius towards the centre while the direction of displacement is tangential to the circle i.e., force and displacement are perpendicular to each other and hence, no work is being done.
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