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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: - Cathode rays are produced when the pressure is of the order of
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- In Young’s double silt experiment, 12 fringes are observed to be formed
- Dependence of intensity of gravitational field (E) of earth with distance(r)
- Which one of the following is not due to total internal reflection?
Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Cathode rays are produced when the pressure is of the order of
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- In Young’s double silt experiment, 12 fringes are observed to be formed
- Dependence of intensity of gravitational field (E) of earth with distance(r)
- Which one of the following is not due to total internal reflection?
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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