Physics - Center of Mass Question with Solution | TestHub
PhysicsCenter of MassMomentum conservationMedium3 minQB
PhysicsMediummultiple choice
A smooth sphere A of mass m collides elastically with an identical sphere B at rest. The velocity of A before collision is 8 m/s in a direction making an angle of 60° with the line of centres at the time of impact.
Options:(select one or more)
Answer:
C, D
Solution:
Equal masses exchange the line-of-centres component: B gets along the line of centres - (D) true, (B) false. A keeps its tangential component - (A) false. A moves tangentially and B along the line of centres: mutually perpendicular - (C) true. Answer: (C), (D)
Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Momentum conservation
⏱ 3mℹ️ Source: QB
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