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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 charges Q, +q, and +q are placed at the vartices of an equilateral
- The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration?
- A coil of resistance and 1.0 H inductance is connected to an a.c. source of frequency
- If Q, E and W denote respectively the heat added, change in internal energy
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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 charges Q, +q, and +q are placed at the vartices of an equilateral
- The displacement of particle is given by x=aₒ+(a₁t/2)-(a₂t²/3) what is acceleration?
- A coil of resistance and 1.0 H inductance is connected to an a.c. source of frequency
- If Q, E and W denote respectively the heat added, change in internal energy
- The internal energy change in a system that has absorbed 2 kcals of heat
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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