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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 plane electromagnetic wave of frequency 20 MHz travels through a space along
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- A small signal voltage V(t)=V₀ sin ωt is applied across an ideal capacitor C
- Two parallel long wires carry currents i₁ and i₂ with i₁ > i₂ .
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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 plane electromagnetic wave of frequency 20 MHz travels through a space along
- A wire having resistance 12Ω is bent in the form of an equilateral triangle.
- A small signal voltage V(t)=V₀ sin ωt is applied across an ideal capacitor C
- Two parallel long wires carry currents i₁ and i₂ with i₁ > i₂ .
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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