I just need help with these two questions please 214 polnts

214 polnts 1 Previous Answers HRw10 6 P048. circular hill of radius 19 m, its speed is not changing. A roller-coaster car has a mass of 1090 kg when fully loaded with passengers. As the car passes over the top of a speed is 11 m/s? (a) what are the magnitude and direction of the force of the track on the car at the top of the hill if the cars magnitude 6,36 direction B (b) What are the magnitude and direction of the force of the track on the car at the top of the hill if the car\'s speed is 17 m/s? magnitude 9213.25 direction downward B (centripetal) acceleration up or down? What is the gravitational force? (For safety, the car has whee write Newton\'s second law for forces along a vertical y axis. Is the

Solution

Based on Chegg guidelines, I can only answer 1 question please upload the second question seperately

F = mv²/r
therefore, a. 1090*11*11/19 = 6941.57 N
b. 1090*17*17/19 = 16579.47 N