JEE Main Physics question

A particle P moving with speed v undergoes a head-on elastic collision with another particle Q of identical mass but at rest. After the collision [Roorkee 2000]

(A)Both P and Q move forward with speed v/2
(B)Both P and Q move forward with speed v/√2
(C)P comes to rest and Q moves forward with speed vCorrect
(D)P and Q move in opposite directions with speed v/√2

Answer: (C)

Solution

In a head-on elastic collision between equal masses with one initially at rest, the

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Question ID VK-154142