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Centripetal Acceleration & Force Video Lecture | Physics for EmSAT Achieve

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FAQs on Centripetal Acceleration & Force Video Lecture - Physics for EmSAT Achieve

1. What is centripetal acceleration?
Ans. Centripetal acceleration is the acceleration directed towards the center of a circular path that an object follows. It is always perpendicular to the velocity of the object and is responsible for keeping the object moving in a circular motion.
2. How is centripetal acceleration calculated?
Ans. Centripetal acceleration can be calculated using the formula a = v^2/r, where a is the centripetal acceleration, v is the velocity of the object, and r is the radius of the circular path.
3. What is the relationship between centripetal force and centripetal acceleration?
Ans. Centripetal force is the force that is required to keep an object moving in a circular path, and it is directly proportional to the centripetal acceleration. The centripetal force is given by the formula F = m*a, where F is the centripetal force, m is the mass of the object, and a is the centripetal acceleration.
4. How does centripetal acceleration differ from tangential acceleration?
Ans. Centripetal acceleration is the acceleration towards the center of a circular path, while tangential acceleration is the acceleration along the tangent to the circular path. Centripetal acceleration changes the direction of velocity, while tangential acceleration changes the magnitude of velocity.
5. Can an object have centripetal acceleration without centripetal force?
Ans. No, an object cannot have centripetal acceleration without a centripetal force acting on it. Centripetal force is necessary to keep the object moving in a circular path and is responsible for providing the centripetal acceleration.
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