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Engineering Mechanics - KOP: Work and Energy - Discussion

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"Nothing is impossible to a willing heart."
- (Proverb)
12.

The "flying car" is a ride at an amusement park, which consists of a car having wheels that roll along a track mounted on a drum. Motion of the car is created by applying the car's brake, thereby gripping the car to the track and allowing it to move with a speed of vt = 3m/s. If the rider applies the brake when going from B to A and then releases it at the top of the drum, A, so that the car coasts freely down along the track to B ( = rad), determine the speed of the car at B and the normal reaction which the drum exerts on the car at B. The rider and car have a total mass of m = 250 kg and the center of mass of the car and rider moves along a circular path of radius r = 8 m.

 [A]. vB = 12.88 m/s, NB = 2.45 kN [B]. vB = 12.88 m/s, NB = 7.64 kN [C]. vB = 17.97 m/s, NB = 12.54 kN [D]. vB = 17.97 m/s, NB = 7.64 kN