The image below shows a car moving at a constant rate over a hill and then into a valley. The radius of curvature of hills and valleys is the same. At the top of the hill, the normal force on the driver of the car seat is zero. The mass of the driver is 70 kg. What is the normal force on the driver from the seat when the car is passing through the bottom of the valley? ( g=10 m/s^2)
a. 1400 N
b. 2500 N
c. 1000 N
d. 0 N
e. There is no contact due to the negative normal force
