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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: - When volume of a system is increased two times and temperature is decreased
- The resultant of two forces, one double the other in magnitude, is perpendicular
- In an orbital motion, the angular momentum vector is
- When an electron beam passes through an electric field they gain kinetic energy.
- A ball is thrown vertically downwards from a height of 20 m with an initially
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When volume of a system is increased two times and temperature is decreased
- The resultant of two forces, one double the other in magnitude, is perpendicular
- In an orbital motion, the angular momentum vector is
- When an electron beam passes through an electric field they gain kinetic energy.
- A ball is thrown vertically downwards from a height of 20 m with an initially
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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