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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
Related Questions: - The electrons are emitted in the photoelectric effect from a metal surface
- The potential energy of a system increases if work is done
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electrons are emitted in the photoelectric effect from a metal surface
- The potential energy of a system increases if work is done
- A beam of electron passes undeflected through mutually perpendicular
- Two particles A and B having equal charges +6C, after being accelerated
- A wire carrying current I has the shape as shown in adjoining figure. Linear parts
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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