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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A polarised light of intensity I₀ is passed through another polariser whose pass axis
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- If a small sphere is let fall vertically in a large quantity of still liquid of density
- An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
- A battery charges a parallel plate capacitor seperated by distance(d) so that the energy
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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