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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: - Consider two nuclei of the same radioactive nuclide. One of the nuclei was created
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- The temperature coefficient of a resistance wire is 0.00125 per degree.
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Consider two nuclei of the same radioactive nuclide. One of the nuclei was created
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- The temperature coefficient of a resistance wire is 0.00125 per degree.
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
- The electric potential at a point (x,y,z) is given by V = – x²y – xz³ + 4.
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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