You are sitting on one end of a 5 meter long table and your friend is at the other end. You want to push a book lying next to you with a constant force for some time and then leave it such that it travels across to your friend. The book should stop just when it reaches her. The friction force on the book during the entire motion remains constant. If the force you exert is four times the magnitude of the friction force, what distance should you push the book till before you leave it?
Please,answer to this,very urgent
