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A 1-kg ball moving at 5 m/s strikes a 2-kg ball moving at 4 m/s in...

A 1-kg ball moving at 5 m/s strikes a 2-kg ball moving at 4 m/s in the opposite direction. After the collision the 2-kg ball continues moving in the same direction at 1.1 m/s. (a) Find the velocity of the 1-kg ball after the collision. (b) Find the change in the kinetic energy.

pls show work

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