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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
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state
- What is the energy released by fission of 1 g of U²³⁵?
- In an electrical circuit R,L,C and an AC voltage source are all connected in series.
- In a photoelectric effect experiment, the slope of the graph between the stopping
- A,B and C are voltmeters of resistance R, 1.5 R and 3R respectively, as shown
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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