A roller-coaster car has a mass of 500 kg when fully loaded with passengers The car passes over a h…

A roller-coaster car has a mass of 500 kg when fully loaded with passengers The car passes over a hill of radius 15 m; as shown At the top of the hill; the car has a speed of 8.0 m/s. What is the force of the track on the car at the top of the hill? 80 15 m Select one: 7.0 kN down b. 2.8 kN down 7.0 kN up d.5.6 kN down 28 KN up

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