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A 16 gm mass is moving in the +x directi...

A `16 gm` mass is moving in the `+x` direction at `30 cm//s` while a `4 gm` is moving in the `-x` direction at `50 cm//s`. They collide head - on and stick together. Their common velocity after impact is

A

`0.14 cm//s`

B

`0.14 m//s`

C

`0 ms^(-1)`

D

`0.3 m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
`v = (m_(1)u_(1)+m_(2)u_(2))/(m_(1)+m_(2))`
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