O O 0.8 165N 40.0 0.6 Force, F (N) 40.0 04 0.2 3 Physical picture Position, r (m) Problem 4 : A traction device uses three pulleys to exert a horizontal force on a broken leg. The middle pulley is attached to the bottom of the foot, and Problem 4 : The force shown on the figure acts on a 2.50kg object. Problem 5 : An Atwood machine is shown in the diagram in which a mass, M, supplies the tension in the ropes. Find the value of the mass, M, The object begins at x = Om with a velocity in the positive direction of 1.00meters the masses begin at rest at the same height. After they are released, the large mass, my = 4.10kg, falls if the force exerted on the bottom of the foot is to be 165N. per second. What is its velocity at x = 4.00m? through a height, h = 1.20m.and the small mass rises, m, = 3.70kg, a distance, h = 1.20m. Assume that the ropes and pulleys have insignificant mass. What is the velocity of the large mass, after it has fallen 1,20m