Posted by Casey on .
At what speed would a 1140kg car have the same momentum as a 12,600kg 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???

Physics 
bobpursley,
Your conversion is correct.
The Prof errs.