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Two identical balls moving in opposite d...

Two identical balls moving in opposite directions with speed 20 m/s and 25 m/s undergo head on perfectly inelastic collision. The speed of combined mass after collision is

A

we can never make out which event has occurred

B

we can not make out which event has occurred only if `v_1 =v_2`

C

we can always make out which event has occurred

D

we can always make out which even has occurred only if `v_1=v_2`

Text Solution

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The correct Answer is:
A
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