Question

4 identical balls of radius R and mass m are lying in a gravity free space. The balls are in contact and their centers are forming vertices of a square of side 2R in a horizontal plane.One identical ball travelling vertically with speed v hits the 4 balls symmetrically and elastically.The centers of 4 balls are at (R,R,0),(R,-R,0),(-R,R,0) and (-R,-R,0). What is the speed of ball 1 after collision.What is speed of projectile ball just after collision.

Read 1 Solution.

Submit Your Answer