Question

(a) a girl pushing a book on a table , what is the work done ?​

Answer 1

Moving the book up with a force exerted by your hand would do work on the book. The reason you wouldn't do any work when you push the book down is because it is not moving. (More precisely, it is not moving in the same direction as the force you applied

Answer 2

Answer:

Answer. Moving the book up with a force exerted by your hand would do work on the book. The reason you wouldn't do any work when you push the book down is because it is not moving. (More precisely, it is not moving in the same direction as the force you applied.)

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