A 12000 kg truck strikes the back end of a 750 kg car moving at 15 m/s. If the truck loses 7500 kg-m/s of its momentum to the car, what is the car's velocity after the collision?

I'm not sure how to solve this one... Help please?!

1 answer

momentum is conserved, so the truck's loss is the car's gain

7500 kg-m/s / 750 kg = ?