Question

(b) What are the conditions for doing work?
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Answer 1

For work to be done, the force must be applied and must not be zero. The body on which the force is applied must move in one direction or the other and hence the S must not be zero. The force must not be applied at 90 degrees angle upon the object as Cos 90 equals zero.

Answer 2

Explanation:

1. force must be exerted on the object. 2. displacement of the object must happen.