A body starts to slide from P, down an inclined frictionless plane PQ having inclination α α with horizontal and then ascends another smooth inclined plane QR with angle of inclination 2 α α . Neglecting impact at O
Text Solution
Verified by ExpertsThe correct answer is:
D
Planes PQ and QR are frictionless and impact is neglected, so mechanical energy will conserve,
∴ ∴ h' = h
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