InterviewSolution
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InterviewSolution
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Two identical balls collide head on. The initial velocity of one is `0.75 ms^(-1)` , while that of the other is `-0.43 ms^(-1)`. If the collision is perfectly elastic, then their respective final velocities areA. `0.75ms^(-1) , -0.43 ms^(-2)`B. `-0.43 ms^(-1) , 0.75 ms^(-1)`C. `-0.75 ms^(-1) , 0.43 ms^(-1)`D. `0.43 ms^(-1) , 0.75 ms^(-1)` |
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Answer» Correct Answer - B `vec(v_(1)) = ((m_(1)-m_(2))/(m_(1)+m_(2)))vec(u_(1))+((2m_(2))/(m_(1)+m_(2)))vec(u_(2))` `vec(v_(2)) = ((2m_(1))/(m_(1)+m_(2)))vec(u_(1))+((m_(2)-m_(1))/(m_(1)+m_(2)))vec(u_(2))` |
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