A particle of mass m is moving in yz – plane with a uniform velocity v with its trajectory running parallel to + ve y – axis and intersecting z –axis at z = a.
The change in its angular momentum about the origin as it bounces elastically from a wall at y = constant is.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
The initial velocity is
After reflections from the wall, the final velocity is 
The trajectory is given as
Hence, the change in angular momentum is
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