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The minimum velocity (in ms⁻¹) with which a car driver must traverse a flat curve of radius 150 m and coefficient of friction 0.6 to avoid skidding is
Options
(a) 60 ms⁻¹
(b) 30 ms⁻¹
(c) 15 ms⁻¹
(d) 25 ms⁻¹
Correct Answer:
30 ms⁻¹
Explanation:
Using the relation,
or v² = μrg
= 0.6 x 150 x 10
v = 30 ms⁻¹.
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A moving coil galvanometer of resistance 100 Ω is converted to ammeter by a resistance
- A particle of mass ‘m’ is kept at rest at a height 3R from the surface of earth
- A coin of mass m and radius r having moment of inertia I about the axis passes
- Electron in hydrogen atom first jumps from third excited state to second excited
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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