A monkey driven car of mass 1500 kg is at the top of a tall parking structure 24 meters tall. Unfortunately, this car has no engine and must
coast to the bottom of the ramp. If the velocity of the car is 12 m/s at the
bottom, how much heat did the tires and brakes absorb during its
descent?

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?