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A particle of mass m moving with velocit...

A particle of mass m moving with velocity `vecV` makes a head on elastic collision with another particle of same mass initially at rest. The velocity of the first particle after the collision will be

A

0

B

`45^@`

C

`90^@`

D

`180^@`

Text Solution

Verified by Experts

The correct Answer is:
C
For perfectly elastic collision
`theta_1 +theta_2 = 90^@`
`implies theta =90^@`
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