Answer :

When a book is kept on a table at rest, it is in state of inertia of rest , and the forces acting on the book are the weight of the book which acts downwards on the table and the normal reaction force which acts upwards on the book back by the table(by Newton’s third law of motion which is action = reaction) and counter balances the weight force.


Hence Net Force acting on the book is 0N when it is kept on a table at rest.



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