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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
- The photoelectric threshold wevelength for potassium (work function being 2 eV) is
- A particle of mass m is driven by a machine that delivers a constant power k watts
- A plane wave of wavelength 6250Å is incident normally on a slit of width 2×10⁻² cm.
- A radioactive element forms its own isotope after 3 consecutive disintegrations.
- When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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