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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: - The distance of the moon form the earth is 3.8×10⁵ km. Supposing that the eye
- A block of mass 0.50 kg is moving with a speed of 2.00 ms⁻¹ on a smooth surface.
- In which of the follows decays, the element does not change?
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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 distance of the moon form the earth is 3.8×10⁵ km. Supposing that the eye
- A block of mass 0.50 kg is moving with a speed of 2.00 ms⁻¹ on a smooth surface.
- In which of the follows decays, the element does not change?
- A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B)
- Two identical charges repel each other with a force equal to 10 mgwt they are 0.6 m
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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