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princess001 princess001
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Posts: 324
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11 years ago
Object A, initially travelling to the right, collides with object B, which is at rest. After the collision, object A moves back to the left and object B remains at rest. Neglecting friction, is this possible? Explain.
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wrote...
11 years ago
If there is no friction, object B would have to be infinitely massive in order to remain at rest. I would say that it is not technically possible to have a perfectly inelastic collision.
wrote...
11 years ago
Impossible. The system initially has + momentum to the right; after collision, it has + momentum to the left.
wrote...
11 years ago
It is not possible unless object B is infinitely massive or is fastened to something infinitely massive. You can approximate "infinitely" massive with "very" massive if the motion of B is so small its not measurable.
wrote...
11 years ago
If they have the same mass, and are near perfectly elastic, all the momentum of A is transferred to B.
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