Momentum is P=mass*velocity Be that it may the real car and toy car travel at the same velocity, the real car has a much larger mass. Since Momentum is directly proportional to mass, the real cars momentum is therefore larger.
The amount of kinetic energy that is transferred from movement is the same but the mass is different. Which means there is more to stop or rather more energy transferred into the object with larger mass.
The real car has more momentum than the toy car moving at the same rate because it has a much greater mass. Momentum is calculated as the product of mass and velocity, so the heavier the object, the more momentum it has at the same speed. Therefore, the real car's greater mass leads to greater momentum compared to the lighter toy car.
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