Answer: The small car has a larger change in velocity.
Explanation:
The largest change of velocity will be in the smallest mass car, this happens because in the collision the change is in the kinetic energy; k = (1/2)m*v^2
where m is the mass and v is the velocity
so for a fixed change of kinetic energy k (that depends on the collision), if m is big, the change in v must be small, and if m decreases, v must increase.
from this, we can see that the vehicle with a smaller mass will be the biggest change in the velocity.
The correct option is:
The small car has a larger change in velocity.
