Physics - Center of Mass Question with Solution | TestHub
PhysicsCenter of MassCollisionMedium2 minQB
PhysicsMediumsingle choice
Seven identical balls, each of mass m , slide on a smooth horizontal surface toward each other with the same speed v, as shown in the diagram. Determine the total number of collisions that will occur in this system. Assume all collisions are head-on and perfectly elastic.
Options:
Answer:
B
Solution:
For identical masses, each head-on elastic collision exchanges their velocities.
Count crossings as though the balls passed through one another.
Answer: B.
Subject:PhysicsTopic:Center of MassSubtopic:Collision
⏱ 2mℹ️ Source: QB
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