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A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the banking angle is 45°, the speed of the car is :
Options
(a) 20 ms⁻¹
(b) 30 ms⁻¹
(c) 5ms⁻¹
(d) 10 ms⁻¹
Correct Answer:
30 ms⁻¹
Explanation:
For banking tan θ = V² / Rg
tan 45 = V² / 90 x 10 = 1
V = 30 m/s
Related Questions: - A step-up transformer operates on a 230 V line and supplies a current of 2 A.
- In Young’s experiment, the ratio of maximum to minimum intensities of the fringe
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A step-up transformer operates on a 230 V line and supplies a current of 2 A.
- In Young’s experiment, the ratio of maximum to minimum intensities of the fringe
- Two concentric spheres kept in air have radii R and r.
- A certain number of spherical dropes of a liquid of radius r coalesce to form a single
- A particle with charge q is moving along a circle of radius R with unoform speed v.
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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