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Since the centripetal acceleration is directed toward the centre of the circle, the net force is also directed toward the centre of the circle. Practice Questions For each of the following italicized objects moving with uniform circular motion (a) draw the FBD of the object, and (b) state the force or combination of forces that
The moon's mass is 7.35 × 1022 kg, and it moves around the earth approximately in a circle or radius 3.82 × 105 km. The time required for one revolution is 27.3 days. Calculate the centripetal force that must act on the moon.
What is the centripetal force acting on the car, and which force provides it? 9. A 2.0 kg object is tied to the end of a cord and whirled in a horizontal circle of radius 4.0 m completing 2 revolutions in 6 seconds.
Define centripetal force. Can any type of force (for example, tension, gravitational force, friction, and so on) be a centripetal force? Can any combination of forces be a centripetal force? If centripetal force is directed toward the center, why do you feel that you are ‘thrown’ away from the center as a car goes around a curve? Explain.
3 Μαρ 2024 · The formula for centripetal force is F c = mv 2 /r. The force pushes or pulls an object toward the center of rotation, for example, in planets orbiting the Sun, turning a car, or spinning a ball on a string.
Use the centripetal acceleration equation and solve for speed. Substitute values for the acceleration due to gravity on Earth and the radius of the Earth's orbit (also known as an astronomical unit). v = √ a c r
Note that centripetal force is the name given to the resultant force: it is not a separate force in the free-body diagram. The centripetal acceleration has to be provided by some other force (tension, friction, normal force) in order for circular motion to occur. 10 •
