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.
The velocity of the disc after collision is
Options:
Answer:
C
Solution:
Elastic impact with translation and rotation of the rod gives disc speed (4-η)v/(4+η).
Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
⏱ 3mℹ️ Source: CT47
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