Force and Free Body Diagrams Name: 4. A block pushed along a floor with velocity V o slides a distance d after the pushing force is removed. a. If the mass of the block is doubled but the initial velocity is not changed, what is the distance the block slides before stopping? Explain. b. If the initial velocity of the block is doubled to 2 V o but the mass is not changed, what is the distance the block slides before stopping? Explain. 5. Suppose you press a book against the wall with your hand. The book is not moving. a. Identify the forces on the book and draw a free body diagram. b. Now suppose you decrease your push, but not enough for the book to slip. What happens to each of the forces you listed in part (a)? Does each one increase in magnitude, decrease, or remain the same