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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
- If longitudinal strain for a wire is 0.03 and its poisson’s ratio is 0.5
- A bomb of mass 30 kg at rest exploded into two pieces of masses 18 kg
- The flux linked with a circuit is given by φ=t³+3t-7. The graph between time
- The specific charge of a proton is 9.6×10⁷ C/kg. The specific charge of an alpha particle
- A concave mirror of focal length f₁ is placed at a distance d from a convex lens
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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