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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: - The instantaneous angular position of a point on a rotating wheel is given by
- Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C
- The potential energy of particle in a force field is U = A/r² – b/r, where A and B
- In which case positive work has to be done in seperating them?
- A body oscillates with amplitude of 10 cm in a horizontal platform.
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The instantaneous angular position of a point on a rotating wheel is given by
- Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C
- The potential energy of particle in a force field is U = A/r² – b/r, where A and B
- In which case positive work has to be done in seperating them?
- A body oscillates with amplitude of 10 cm in a horizontal platform.
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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