A body of mass 1 kg moving with velocity...

A body of mass 1 kg moving with velocity 5 m/s collides with another body of mass 2 kg moving with velocity 1.5 m/s in opposite direction. If the coefficient of restitution is 0.8, their velocities aftter collision respectively are

`-2.8 m//s, + 2.4 m//s`

`+ 2.8 m//s, -2.4 m//s`

`-1.67 m//s, -2.4 m//s`

`+2.8 m//s, -6.87 m//s`

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