A body of mass `m_(1)` moving with a velocity `3 m//s` collides with another body at rest of `m_(2)` . After collision the velocities of the two bodies are `2 m//s` and `5 m//s` , respectively , along the direction of motion of `m_(1)`. The ratio `m_(1)//m_(2)` is

Options

A. `(5)/(12)`
B. `5`
C. `(1)/(15)`
D. `(12)/(5)`

Answer

B

Explanation

`m_(1) xx 3 = m_(1) xx 2 + m_(2) xx 5 rArr (m_(1))/(m_(2)) = 5`