Problem 2 A block of mass mi=10 Kg on a rough inclined plane of angle 300 is connected by a cord over a small frictionless pulley to a second block of mass m2, as shown in Figure 1. For the first block the initial position is 5m above ground level, the coefficient of static friction is 0.25 along the inclined plane and the coefficient of kinetic friction is 0.15. The inclined plane for the second block is frictionless. a) Find the mass m2 that will prevent the block mi slipping down the plane. b) Assuming that the second block m2 is removed, find the velocity of the sliding block mi at the lower end of the inclined plane, using energy consideration. Problem 3 FIGURE 1