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Difference between Centripetal and Centrifugal Force Video Lecture - Class 9

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FAQs on Difference between Centripetal and Centrifugal Force Video Lecture - Class 9

1. What is the difference between centripetal and centrifugal force?
Ans. Centripetal force is the force that acts towards the center of a circular path, keeping an object moving in a curved path. On the other hand, centrifugal force is not a real force but an apparent force that appears to act outward from the center of rotation.
2. How are centripetal and centrifugal forces related?
Ans. Centripetal and centrifugal forces are related in that they are equal in magnitude and opposite in direction. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. Therefore, the centripetal force that pulls an object towards the center of its circular path is balanced by the centrifugal force that appears to push the object outward.
3. Can you provide examples of centripetal force?
Ans. Sure, examples of centripetal force include the gravitational force that keeps planets in orbit around the sun, the tension in a string that keeps a ball moving in a horizontal circle, and the friction between car tires and the road that allows a car to navigate a curve.
4. Why is centrifugal force considered an apparent force?
Ans. Centrifugal force is considered an apparent force because it only appears to act outward from the center of rotation. In reality, it is the inertia of the object that causes it to move in a straight line tangent to its circular path. The centrifugal force is a result of this inertia and is not a physical force like gravity or friction.
5. Are centripetal and centrifugal forces always present in circular motion?
Ans. Yes, in circular motion, both centripetal and centrifugal forces are always present. The centripetal force is necessary to keep an object moving in a curved path, while the centrifugal force is the apparent force that appears to push the object outward. These forces work together to maintain the object's motion in a circle.
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