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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 siren emitting sound of frequency 800 Hz is going away from a static listener
- A wheel has moment of inertia 5 x 10⁻³ kgm² and is making 20 revolutions per sec
- Volume of gas becomes four times if temperature becomes
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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 siren emitting sound of frequency 800 Hz is going away from a static listener
- A wheel has moment of inertia 5 x 10⁻³ kgm² and is making 20 revolutions per sec
- Volume of gas becomes four times if temperature becomes
- A 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire
- The optical path of a monochromatic light is same if it goes through 4.0 cm
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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