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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
- If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
- Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted
- A spring when stretched by 2mm containing energy 4 J. If it is stretched
- An A.C source is rated at 220 V, 50 Hz. The time taken for voltage to change
- Hard X-rays for the study of fractures in bones should have a minimum wavelength
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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