Blocks A and B each have a mass of 0.4 kg and block C has a mass of 1.2 kg. The coefficient of friction between the blocks and the plane is μk = 0.30. Initially block A is moving at a speed v0 = 3 m/s and blocks B and C are at rest (Fig. 1). After A strikes B and B strikes C, all three blocks come to a stop in the positions shown (Fig. 2). Determine

(a) The coefficients of restitution between A and B and between B and C,

(b) The displacement x of block C.