Two equal mass objects are moving in a circular path with constant speed as shown in figure. After how many collisions they will again meet at A.
Two balls a and b of same mass are moving on a circular path of radius r=1 m with constant velocity of 5 m/s and 15 m/s as shown in figure. If after some time both ball collides perfectly elastically, find the time t when they will collide again. Friction is absent everywhere.