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Question 3: In the figure, a car is driven at constant speed over a circular hill and then into a circular valley with the same radius. At the top of

the hill, the normal force on the driver from the car seat is 0. The driver's mass is 70.0 kg. What is the magnitude of the normal force on the driver from the seat when the car passes through the bottom of the valley?

Fig: 1

Fig: 2