Question

The work done is said to be negative if
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Answer 1

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Negative work is performed if the displacement is opposite to the direction of the Force applied. Example: Work was done the gravity on a rocket going perpendicular upwards.....

Answer 2

Answer:

If there is no reaction of an object in respect to the work done.

E.g- if a man pushes a wall then the work done is negative because the wall will not move from his single push.