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A particle of mass m moves with constant speed along a circular path of radius r under the action of a force F. Its speed is
Options
(a) √rF/m
(b) √F/r
(c) √Fmr
(d) √F/mr
Correct Answer:
√rF/m
Explanation:
The centripetal force is F=mv²/r
.·. v²=Fr/m
The speed is v= √Fr/m
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Angle of contact of a liquid with a solid depends on
- The wave function (in SI unit) for a light wave is given as Ψ(x,t)= 10³ sin π
- Two solid discs of radii r and 2r roll from the top of an inclined plane
- A sound source is moving towards a stationary listener with 1/10th of the speed
- The electrons are emitted in the photoelectric effect from a metal surface
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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