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Two identical ball A and B having veloci...

Two identical ball A and B having velocities of 0.5m/s and -0.3m/s respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be

A

`-0.5m//s and +0.3m//s`

B

`+0.5m//s and +0.3m//s`

C

`+0.3m//s and -0.5m//s`

D

`-0.3m//s and +0.5m//s`

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The correct Answer is:
D
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