A car travels around a rotary at a constant speed. In this situation, ______ is the force responsible for supplying the centripetal force necessary to keeping the car going around the curve. A. friction B. tenion C.normal force D.gravity

1. A road with a radius of 75.0 m is banked so that a car can navigate the curve at a speed of 13.2 m/s without any friction. When a car is going 27.6 m/s on this curve, what minimum coefficient of static friction is needed if the car is to navigate the curve without slipping? 2.   A spy satellite is in circular orbit around Earth. It makes one revolution in 2.70 h. Mass of Earth is 5.974 × 1024 kg, radius of Earth is 6371 km and Gravitational constant G is = 6.674 × 10−11 N·m2/kg2. A) How high above Earth’s surface is the satellite? in KM B) What is the satellite’s acceleration? in m/s2

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4. A student with a mass of m rides a roller coaster with a loop with a radius of curvature of r. What is the minimum speed the rollercoaster can maintain and still make it all the way around the loop? radius = 6.0 m mass = 60 kg

9) A bicyclist rides on a circular track. The coefficient of friction between the wheels and the track is 0.8. If the bicyclist maintains a constant speed of 15 m/s, what is the minimum radius of the track so that the bicyclist's wheels will not slip? 10) An object in uniform circular motion makes 15 revolutions every 6 seconds. If its centripetal acceleration is 4.5 m/s², what is the radius of its motion?

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The period of rotation of a Ferris Wheel is 2 minutes and 45 seconds. Find the tangential speed of the passengers if the radius of the wheel is 25m.      a.0.35 m/s b.0.75 m/s c.0.83 m/s d. 0.95 m/s e. none of the above

0.31kg cart on a horizontal air track is attached to a string. The string passes over a disk-shaped pulley of mass 0.080kg and radius 0.012m and is pulled vertically downward with a constant force of 1.1N.    Find the tension in the string between the pulley and the cart. Find the acceleration of the cart.

2. It takes a 615 kg car 14.3 s to travel at a uniform speed around a level circular path of 50.0 m radius. (a) What is the speed of the car? (b) What is the acceleration of the car? (c) What amount of centripetal force must the track exert on the tires as it moves in the circle?

7. A 1200 kg car rounds a curve of radius 64.0 m banked at an angle of 14°. What is the maximum speed that the car can reach without skidding if the coefficient of static friction between the tires and the road is 0.58?