A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true about the direction of the car after the collision if the collision is elastic?

a) the car continues moving in its initial direction with the same velocity
b)the car bounces off and moves in the opposite direction
c)the car keeps moving in its initial direction with a lower velocity than at first
d)the car stops completely

Question

A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true about the direction of the car after the collision if the collision is elastic?

a) the car continues moving in its initial direction with the same velocity
b)the car bounces off and moves in the opposite direction
c)the car keeps moving in its initial direction with a lower velocity than at first
d)the car stops completely

anonymous · Answer

It's either B or D. think about it - if you're playing with 2 toy cars, one of which is larger then the other, and you are racing the cars, and the smaller one crashes into the larger one, would the smaller car bounce off the car, or would it stop completely?

anonymous · Answer

yes it was b