Physics - Center of Mass Question with Solution | TestHub
PhysicsCenter of MassMomentum conservationMedium3 minQB
PhysicsMediumsingle choice
Passage / Comprehension
Two bodies have undergone an elastic one-dimensional collision along x-axis. Figure is a graph of position versus time for these bodies and for their center of mass.
In the figure, six line segments describe the motion (1 horizontal before, 2 and 3 rising before, 4 and 5 rising after, 6 horizontal after; segments 2 and 5 are collinear). The position-time graph of the centre of mass of the two bodies is represented by the segments:
Options:
Answer:
B
Solution:
The centre of mass moves with constant velocity throughout, so its graph is one straight line through the collision point. Only segments 2 (before) and 5 (after) are collinear. Answer: (B)
Stream:JEESubject:PhysicsTopic:Center of MassSubtopic:Momentum conservation
⏱ 3mℹ️ Source: QB
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