Question
Download Solution PDFIn case of Uniform Circular Motion, the work done by the centripetal force is ________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Circular Motion: Circular motion is a movement of an object along the circumference of a circle or rotation along a circular path.
- The force acts continuously at right angles to the velocity of the particle.
- Uniform circular motion: The circular motion in which the speed of the particle remains constant is called uniform circular motion.
- In a uniform circular motion, force supplies the centripetal acceleration.
ac = v2/r, where ac is centripetal acceleration, v is velocity, r is the radius.
- The speed and kinetic energy of the particle remains constant.
EXPLANATION:
- If the Force F acts on a body and it gets displaced by a distance of S, the work done in that case is given by:
⇒ W = FS Cos θ
- In the case of uniform circular motion, Cos 90o = 0 and that is why W = 0 (The force and displacement are perpendicular to each other). So option 3 is correct.
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