Physics - Rotation Question with Solution | TestHub
PhysicsRotationMiscellaneousMedium3 minCT47
PhysicsMediumsingle choice
Passage / Comprehension
a small disc of mass m moves with speed v perpendicular to a thin uniform rod of length L and mass ηm on a smooth horizontal plane. It collides elastically with the end of the rod.
Angular velocity of the rod after the elastic collision is:
Options:
Answer:
D
Solution:
The same impulse equations give rod angular speed 12v/((4+η)L).
Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
⏱ 3mℹ️ Source: CT47
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