a 70 kg cart on a roller coaster has a motor that keeps it moving at constant speed in a circular, vertical loop whose radius is 14 meters. At point A, the centripetal force on the cart is 1000 N. The cart has wheels on both sides of the track so that it cannot leave leave track.
The amount of force exerted on the cart by the track at the top is approximately
a) 300 N
b) 700 N
c) 1700 N
d) 1300 N
e) 0 N
would it be 1700 because the force of gravity and the normal force are acting on it?