1.

A particle of mass m moving with velocity v strikes a particle of mass 2m at rest and sticks to it. The speed of the combined mass is

Answer»

`v/2`
2V
`v/3`
`v/4`

Solution :ACCORDING to conservation of LINEAR momentum
`MV=(m+2m)v^(1)`
`v_(1)(mv)/(3m)=v/3`


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