A Car Having a Total Mass of 2250 Kg and Traveling

Multiple Choice

A car having a total mass of 2250 kg and traveling at 72 km/h smashes into a tree. The car is stopped in 0.25 s. The driver of the car is not held in place by a seat belt or any other restraining device. Just after the impact but before the driver hits any part of the car, the acceleration of the driver is

A) 80 m/s² toward the tree.
B) zero with respect to the tree.
C) 80 m/s² away from the tree.
D) 1.8  102m/s² with respect to the car.
E) 37 m/s² away from the tree.