申論題

2. As shown in Figure (2), two identical blocks B and C of length 36.0 cm on the smooth horizontal surface, and the object A(treat A as a particle) is located at the right end of B, with the same mass of A, B and C. A and B are moving with the same speed toward the stationary C, and then B undergoes a one-dimensional completely inelastic collision with C. A is known to slide to the right end of C without falling and there is friction between A and C. Find the distance that C has traveled from the collision of B and C to A just arriving the right end of C.