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a 1.5 kg car (1) initially moving at 4.0 m/s to the right collides with a...

a 1.5 kg car (1) initially moving at 4.0 m/s to the right collides with a 2.0 kg car (2) initially moving at 2.0 m/s to the left. After the inelastic collision, car 1 is moving to the left at 1.2 m/s

A) What is the velocity and direction of car 2 after the collision?

B) What is the change in total kinetic energy and the percentage of initial kinetic energy remaining after the collision?

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