Physics - Center of Mass Question with Solution | TestHub
PhysicsCenter of MassImpulse momentum theoremMedium2 minQB
PhysicsMediumstatement
A platform is kept on rough horizontal surface. At one end A of platform there is a man standing on it. The man runs towards the end B and the platform is found to move. Choose correct statement just after man abruptly comes to rest on platform at B :-
Options:
Answer:
A
Solution:
Consider the man and platform together immediately after the man stops relative to the platform at B.
The external horizontal force on this system is ground friction, directed right while the platform had been moving left.
Hence the centre of mass accelerates to the right.
The platform begins moving right. Option A.
Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Impulse momentum theorem
⏱ 2mℹ️ Source: QB
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