Physics - Center of Mass Question with Solution | TestHub
PhysicsCenter of MassMomentum conservationMedium2 minQB
PhysicsMediummultiple choice
Figure shows a block of mass m projected with velocity towards a wedge. Consider all the surfaces to be smooth. Block does not have sufficient energy to negotiate (over come) wedge. Mark the correct option(s).
Options:(select one or more)
Answer:
A, B
Solution:
No external horizontal force on (block + wedge), so momentum is conserved only horizontally - (A) correct, (C) wrong. All surfaces smooth, so total mechanical energy is conserved - (B) correct.
At maximum height the block moves with the wedge at , so the centre of mass keeps moving - (D) wrong. Answers: (A), (B).
Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Momentum conservation
⏱ 2mℹ️ Source: QB
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