Two locks of masses 6 kg and 4 kg are placed on a frictionless surface and connected by a spring.If the heavier mass is given a velocity of `14 ms^(-1)` in th direction of lighter one,then the velocity gained by the centre of mass will be

Options

A. `7.4 ms^(-1)`
B. `14 ms^(-1)`
C. `8.4 ms^(-1)`
D. `10 ms^(-1)`

Answer

C