Collar A starts from rest at t 5 0 and moves downward with a constant acceleration of 7 in./s 2 . Collar B moves upward with a constant acceleration, and its initial velocity is 8 in./s. Knowing that...

Collar A starts from rest at t 5 0 and moves downward with a constant acceleration of 7 in./s²
. Collar B moves upward with a constant acceleration, and its initial velocity is 8 in./s. Knowing that collar B moves through 20 in. between t = 0 and t = 2 s, determine (a) the accelerations of collar B and block C, (b) the time at which the velocity of block C is zero, (c) the distance through which block C will have moved at that time.