A roller coaster car has a mass of 500 kg when fully loaded with passengers. (a) If the vehicle has a speed of 20.0 m/s at point A at the bottom of a dip of radius 10 m, what is the force exerted by the track on the car at this point? (b) What is the maximum speed the vehicle can have at point B, at the top of a hill of radius 15 m, and still remain on the track?
University of Ilorin PHY101 2026-exam past question
- (a) 24900 N; (b) 12.1 m/s
- (a) 20000 N; (b) 12.1 m/s
- (a) 24900 N; (b) 9.8 m/s
- (a) 15100 N; (b) 14.8 m/s
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