The diagram depicts Before and After velocities of an 800-kg car in two different collisions with a wall. In case A, the car rebounds upon collision. In case B, the car hits the wall, crumples up and stops. Assume that the collision time for each collision is equal. In which case does the car experience the greatest impulse?
A. Case A
B. Case B
C. Both are the same
D. Not enough information is given
Answer:B
The diagram depicts Before and After velocities of an 800-kg car in two different collisions with a wall. In case A, the car rebounds upon collision. In case B, the car hits the wall, crumples up and stops. Assume that the collision time for each collision is equal. In which case does the car experience the greatest impulse?
A. Case A B. Case B C. Both are the same D. Not enough information is given