For an example, a car and a truck are linearly colliding against each other,from opposite directions, and the car is faster than the truck.The collision is perfectly elastic. I do not understand why the car, after colliding and rebounding from the truck, is unable to increase its velocity from its original. Isn't momentum absorbed from the truck? Unless there is a law that i do not understand which states the effect of speed in a collision.
According to AS 9702/12/O/N/17 question 9, and its mark scheme, as reference. (GCE A Levels)
9 A slow vehicle and a fast vehicle travel towards each other in a straight line and then collide. Which outcome is never possible, regardless of the masses of the vehicles?
A. Both vehicles stop
B. Only one vehicle stops
C. The fast vehicle's speed increases
D. The slow vehicle's speed increases
Answer is: C
Search for keyword 9702/12/O/N/17 qp for question paper 9702/12/O/N/17 ms for mark scheme