Three identical balls
P1,P2 and
P3 are placed on a frictionless surface in a straight line. The mass of each is
m. Another ball
P moving with velocity
v collides directly with the three balls as shown in figure. The collision is perfectly elastic; now determine the velocity of all the four balls.
![795922_da7a554dfe374f5fb4df736553f7b670.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/795922_da7a554dfe374f5fb4df736553f7b670.png)