Two blocks of masses m1 = 2.00 kg and m2 = 4.40 kg are each released from rest at a height of h = 4.00 m on a frictionless track, as shown in the figure below, and undergo an elastic head-on collision. (Let the positive direction point to the right. Indicate the direction with the sign of your answer.)

(a) Determine the velocity of each block just before the collision.

v1i = m/s

v2i = m/s

(b) Determine the velocity of each block immediately after the collision.

v1f = m/s

v2f = m/s

(c) Determine the maximum heights to which m1 and m2 rise after the collision.

y1f = m

y2f = m