At what speed would a 1140-kg car have the same momentum as a 12,600-kg truck traveling at 25 km/hr?

The hint given to this problem is that I need to find the velocity of the car and truck.
Converting 25 km/hr to m/s I get 6.944 m/s as the initial velocity.. The professor told us that the velocity should be 15 for the truck. How is the professor getting this number???

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  1. Your conversion is correct.

    The Prof errs.

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