Two identical ball bearings in contact with each other and resting on a frictionless table are hit heat-on by another ball bearing of the same mass moving initially with a speed `V` as shown in figure. If the collision is elastic, which of the following (figure) is a possible result after collision ?A. B. C. D.

Two identical ball bearings in contact with each other and resting on

1.	Two identical ball bearings in contact with each other and resting on a frictionless table are hit heat-on by another ball bearing of the same mass moving initially with a speed `V` as shown in figure. If the collision is elastic, which of the following (figure) is a possible result after collision ?A. B. C. D.
Answer» Correct Answer - B When two bodies of equal mass collides elastically, their velocities are interchanged. When ball `1` collides with `ball-2`, then velocity of `ball-1, v_(1)` becomes zero and velocity of `ball-2,v_(2)` becomes `v`, i.e., similarly. `v_(1) = 0 rArr v_(2) = v` when ball `2` collides will ball `3 v_(2) = 0, v_(3) = v`.

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