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Q.

Is it true that an object which is in the state of accelerated motion due to external force acting on it, but no work is being done by the force?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
Suppose you take an example of an object moving in a circle. In that case, it is experiencing centripetal acceleration towards the centre, and the displacement is tangent to the circle at any point. The displacement and the force are perpendicular to each other so the work done is zero.
 
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