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A car drives through the bottom of a valley. The valley has a radius of curvature of r = 150 m. The mass of the

A car drives through the bottom of a valley. The valley has a radius of curvature of r = 150 m. The mass of the car is 1100 kg and its speed is 18 m/s. What is the magnitude of the normal force of the hill on the car?

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