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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: - An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz.
- In L-C-R series circuit, an alternating emf e and current i are given by the equations
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An engine is moving towards a wall with a velocity 50 ms⁻¹ emits a note of 1.2 kHz.
- In L-C-R series circuit, an alternating emf e and current i are given by the equations
- For a given velocity, a projectile has the same range R for two angles of projection.
- Activity of a radioactive sample decreases to (1/3)rd of its original value
- An inductor is connected to an a.c. source when compared to voltage,
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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