Question

The figure below shows a roller-coaster car on a track. The car is fully loaded with passengers and has a total mass of 440 kg. At point A, the car is at the lowest point in a circular arc of radius r1 = 12.6 m. At point B, the car is at the highest point of a circular arc of radius r2 = 15.8 m.

The figure below shows a roller-coaster car on a track. The car is fully loaded with passengers and has a total mass of 440 kg. At point A, the car is at the lowest point in a circular arc of radius r1 = 12.6 m. At point B, the car is at the highest point of a circular arc of radius r2 = 15.8 m. B) (a) If the car has a speed of 24.0 m/s at point A, what is the magnitude of the force (in N) of the track on the car at this point? N (b) What is the maximum speed (in m/s) the car can have at point B in order for the car to maintain contact with the track at all times (that is, so that it does not "jump" off the track)? m/s

Answer 1

at kint A, 2 F = mu r AN N- unog = 440/24) 12.6 440g N= 4yox g. 8+ 20114.3 N=24426.3 Newton at Point B quog 440 (5) 440X9, 8- N = IS ५५० Nz 0 4 48 98 4 4 x 98 x 15.8 < ५५० une 154.84 B Y < 12.44 m/s Aus