A) \[2u\]
B) \[\frac{u}{3}\]
C) \[2u\]
D) \[\frac{u}{4}\]
Correct Answer: B
Solution :
Key Idea: Momentum is conserved before and after Collision. From the principle of conservation of momentum, if no external force acts upon a system of two (or more) bodies then the totalYou need to login to perform this action.
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