a 2 kg object moves on a track to the right at 10 m/s, and then reaches a circular depression. assume the object stays on the track, and the radius of the track is 4 meters at the bottom of the circular depression. also assume the bottom is 4 meters below the initial position of the object. there is no friction.When the object reaches the bottom of the circular depression, calculate the normal force that the track exerts on the object.
39 N
69 N
109 N
89 N
19.6 N
