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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 stone thrown into still water, creates a circular wave pattern moving radially
- The electirc field in a certain region is acting radially outward and is given by E=Ar.
- An A.C source is rated at 220 V, 50 Hz. The time taken for voltage to change
- The power obtained in a reactor using U²³⁵ disintegration is 1000 kW
- A 1 µA beam of protons with a cross-sectional area of 0.5 sq.mm is moving with a velocity
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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