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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: - A radioactive substance contains 10000 nuclei and its halflife period is 20 days
- Two resistors of resistances 2Ω and 6Ω are connected in parallel.
- Two metal rods 1 and 2 of same lengths have same temperature difference
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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 radioactive substance contains 10000 nuclei and its halflife period is 20 days
- Two resistors of resistances 2Ω and 6Ω are connected in parallel.
- Two metal rods 1 and 2 of same lengths have same temperature difference
- Two bulbs 60 W and 100 W designed for voltage 220 V are connected in series
- A 100Ω resistance and a capacitor of 100Ω reactance are connected in series
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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