Physics - Rotation Question with Solution | TestHub

PhysicsRotationMiscellaneousMedium3 minCT47
PhysicsMediumsingle choice

A uniform bar of length ' 6 ' and mass ' 8 m ' lies on a smooth horizontal table. Two point masses m and 2m moving in the same horizontal plane with speed 2v and v respectively, strike the bar (as shown in the fig.) and stick to the bar after collision. Total energy (about the center of mass, c) will be :-

CT47 diagram

Options:

Answer:
A
Solution:

Apply conservation of momentum/angular momentum and the rigid-body constraint.

Simplification gives the marked answer A.

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Miscellaneous
3mℹ️ Source: CT47

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