I have the following setup:
Mass $A$ is $4m$ kg and moves at 3 m/s on a smooth table. It collides directly with another mass $B$, which is $m$kg, which moves in the opposite direction to $A$ and had speed 6 m/s immediately before the collision. After the mass $A$ is said to have changed direction and move at 2 m/s.
So I want to find the coefficient of restitution.
When I applied the conservation of momentum, I found that $B$ had a speed of 14 m/s and also changed direction.
But the problem is when I calculate the coefficient of restitution I get $\frac{14 - - 2}{3 - - 6} = \frac{16}{9}$ and this is greater than 1!
I thought the coefficient of restitution was between $0$ and $1$?