Physics - Rotation Question with Solution | TestHub
PhysicsRotationMiscellaneousMedium3 minQB
PhysicsMediummultiple choice
A disk of radius R mass m has a thin groove of radius r in it. It
Options:(select one or more)
Answer:
B, C, D
Solution:
The spring interaction is internal to block+disc.
Their angular momenta about O are equal and opposite.
Newton third-law forces have equal magnitude, and their torques about O have equal magnitude.
Their kinetic energies need not be equal.
Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
⏱ 3mℹ️ Source: QB
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