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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 coefficient of friction between the tyres and the road is 0.25. The maximum speed
- In nuclear fusion, two nuclei come together to form a large nucleus.
- The earth is assumed to be a sphere of radius R. A platform is arranged at a height R
- A particle executing simple harmonic motion of amplitude 5 cm has maximum
- In the reaction ₉₂U²³⁴→₈₇Y²²², how many α-particle and β-particles are emitted
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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