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Which of the following conditions are necessary to decide whether work is done or not?

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A force is acting on the object

The object undergoes displacement

The angle between the directions of force and displacement is not 900

All of the above

answer is D.

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Detailed Solution

Work is said to be done if the following conditions are met:
●       A force is acting on an object
●       The object undergoes a displacement, and
●       The angle between the direction of force and the displacement is not

9 0^{0}

Work is defined as the product of force acting on an object and the displacement produced by the force. It is determined using the given expression

W = Fd

Where,

F

is the force acting on the object and

d

is the displacement.

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