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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
- An object placed at 20 cm in front of a concave mirror produces three times
- Dimensional formula of magnetic field in terms of mass M, length L
- An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
- A beam of light of λ=600 nm from a distant source falls on a single slit 1 mm wide
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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