Question:
A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved ?
A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved ?
Updated On: Jun 14, 2022
- Centre of circle
- On the circumference of the circle
- Inside the circle
- Outside the circle
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The Correct Option is A
Solution and Explanation
In uniform circular motion the only force acting on the particle is centripetal ( towards centre). Torque o f this force about the centre is zero. Hence, angular momentum about centre remain conserved.
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Concepts Used:
System of Particles and Rotational Motion
- The system of particles refers to the extended body which is considered a rigid body most of the time for simple or easy understanding. A rigid body is a body with a perfectly definite and unchangeable shape.
- The distance between the pair of particles in such a body does not replace or alter. Rotational motion can be described as the motion of a rigid body originates in such a manner that all of its particles move in a circle about an axis with a common angular velocity.
- The few common examples of rotational motion are the motion of the blade of a windmill and periodic motion.