A small car with mass of 0.800 kg travels at a constant speed on the inside of a track that is a vertical circle with radius 5.00m. If the normal force exerted by the track on the car when it at the bottom of the track is 25 N,
a) What is the normal force on the car when it is at the (i) top, (ii) rightmost and (iii) leftmost point of the track?
b) What is the speed of the car as it travels around the vertical circle?

5.47. A small model car with mass m travels at constant speed on the inside of a track that is a vertical circle with radius 5.00 m (Fig. ES.45). If the normal force exerted by the track on the car when it is at the bottom of the track (point A) is equal to 2.50mg, how much time does it take the car to complete one revolution around the track? Figure 15.45

A small remote-control car with a mass of 1.61 kg moves at aconstant speed of v = 12.0 m/s in a vertical circle inside a hollowmetal cylinder that has a radius of 5.00 m.

A. What is the magnitude of the normal force exerted on the car bythe walls of the cylinder at point A (at the bottom of the verticalcircle)?

5.45 . A small remote-controlled car with mass 1.60 kg moves at a constant speed of u = 12.0 m/s in a track formed by a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m (Fig. 55.45). What is the magnitude of the normal force exerted on the car by the walls of the cylinder at (a) point A (bottom of the track) and (b) point B (top of the track)? Figure E5.45