The roller-coaster car has a mass of 800 kg, including its passenger, and starts from the top of the hill A with a speed vA = 3 m/s. Determinehthe minimum height h of the hill so that the car travels around both inside loops without leaving the track. Neglect friction, the mass of the wheels, and the size of the car. What is the normal reaction on the car when the car is at B and at C?
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