Which of the following effect cannot be produced by an unbalanced force acting on a body?
$(a)$. change in speed of the body
$(b)$. change in shape of the body
$(c)$. change in direction of motion of the body
$(d)$. change in state of rest of the body

An unbalanced force can change in speed, the direction of motion and can change in the state of the rest of the body but can't change in the shape of the body.

So, option (b) is correct.

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Updated on: 10-Oct-2022

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