A force, applied on a body, is said to have done some work

If the body suffers no displacement

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If the body suffers a displacement

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If the shape of the body changes

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If the size of the body changes

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Solution

The correct option is B If the body suffers a displacement
A force, applied on a body, is said to have done some work if the body suffers a displacement. This is according to the definition of work.
$work = Force \times displacement$

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When a force is applied on a body, the shape of the body can change.

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A force, applied on a body, is said to have done some work

The correct option is B If the body suffers a displacementA force, applied on a body, is said to have done some work if the body suffers a displacement. This is according to the definition of work.work = Force×displacement

The correct option is B If the body suffers a displacement
A force, applied on a body, is said to have done some work if the body suffers a displacement. This is according to the definition of work.
$work = Force \times displacement$