Physics - Rotation Question with Solution | TestHub
PhysicsRotationMiscellaneousMedium3 minQB
PhysicsMediummultiple choice
Passage / Comprehension
A particle of mass m is fixed to the perimeter of a ring of mass m and radius r on a frictionless horizontal plane. It is released from rest with the particle at the top. For Q12-Q13 consider the instant when the particle is level with the ring centre.
Mark the CORRECT option(s) :
Options:(select one or more)
Answer:
A, B, D
Solution:
Energy gives particle speed √(gr) and system CM speed √(gr)/2.
Thus ω=√(g/r); the ring centre is instantaneously at rest, but the ground contact is not.
Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
⏱ 3mℹ️ Source: QB
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