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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
- A change of 0.04 V takes place between the base and the emitter when an input
- An unpolarised beam of intensity I is incident on a pair of nicols making an angle
- When a piece of metal is illuminated by a monochromatic light of wavelength λ,
- In a diffraction pattern due to a singleslit of width a, the first minimum is observed
- The mean radius of the earth is R, its angular speed on its own axis is ?
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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