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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: - In a potentiometer experiment two cells of e.m.f. E₁ and E₂ are used in series
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a potentiometer experiment two cells of e.m.f. E₁ and E₂ are used in series
- A car sounding a horn of frequency 100 Hz passes an observer. The ratio
- Water falls from a height of 60m at the rate of 15 kg/s to operate a turbine
- An electric kettle has two heating elements. One brings it to boil in ten minutes
- The physical quantity which does not have the same dimensions as the other three 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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