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Two particles of equal masses moving wit...

Two particles of equal masses moving with same collide perfectly inelastically. After the collision the combined mass moves with half of the speed of the individual masses. The angle between the initial momenta of individual particle is

A

`60^(@)`

B

`90^(@)`

C

`180^(@)`

D

`120^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
Ans. (4)

Apply moment of conservation
`mvsintheta+mvsintheta=2m((v)/(2))`
`2sintheta=1`
`sintheta=(1)/(2)`
`theta=30^(@)`
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