Two balls shown in figure are identical. Ball A is moving towards right with a speed v and the second ball is at rest. Assume all collisions to be elastic. Show that the speeds of the balls remain unchanged after all the collisions have taken place. (Assume frictionless surface)

Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.

After first collision

After collision of B from wall
v B = – v + 2 × 0 = –v
so 
⇒ 
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