Use the formula F = ma = mdV/dt T + mkv^2 N to answer the following questions.
(a) What force corresponds to the push against the seat experienced by the passenger when the accelerator is depressed?
(b) What force corresponds to the push against the door experienced by the passenger when the car is going around a curve?
(e) How does the later force vary with the curvature if the road?
(d) How does it vary with the speed of the car?