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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
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
- The density of ice is 0.9 g/cc and that of sea water is 1.1 g/cc
- For CE transistor amplifier, the audio signal voltage across the collector resistance
- A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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