Work Energy And Power Question 120

Question: A ball of mass m moving with velocity V, makes a head on elastic collision with a ball of the same mass moving with velocity 2V towards it. Taking direction of V as positive velocities of the two balls after collision are [MP PMT 2002]

Options:

A) $ -V $ and $ 2V $

B) $ 2V $ and $ -V $

C) V and $ -2V $

D) $ -2V $ and $ V $

Show Answer

Answer:

Correct Answer: D

Solution:

Due to elastic collision of bodies having equal mass, their velocities get interchanged.



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