(Solved): A small model car with mass m travels at constant speed on the inside of a track that is a vertical ...

A small model car with mass m travels at constant speed on the inside of a track that is a vertical circle with radius r=3.00m (Figure 1). 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. Express your answer with the appropriate units. t=quad