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Two balls of equal masses movin with vel...

Two balls of equal masses movin with velocities `10m/s and -7m/s` respectively collide elatically. There velocities after collision with be

A

`7 ms^(-1) and 17ms^(-1)`

B

`-7ms^(-1) and 10ms^(-1)`

C

`10ms^(-1) and -7ms^(-1)`

D

`3ms^(-1) and -70ms^(-1)`

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The correct Answer is:
B
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