Answer:
The car moving at a higher speed, 30mph than the other car
Step-by-step explanation:
the momentum of a body is a product of mass and velocity. momentum is proportional to mass and also to velocity or speed. this means if the mass increases the momentum increases. Also if speed is increases the momentum is increased. The question refers to two cars of same model which means they have same mass.what would differentiate their momentum is their velocities. The one with the higher speed will have a greater momentum hence a greater force.