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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: - For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
- The mass of a ⁷₃ Li nucleus is 0.042 u less than the sum of the masses of all its nucleons
- A particle moves with constant speed v along a circular path of radius r and completes
- The quantity having the same units in all systems of unit is
Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
- The mass of a ⁷₃ Li nucleus is 0.042 u less than the sum of the masses of all its nucleons
- A particle moves with constant speed v along a circular path of radius r and completes
- The quantity having the same units in all systems of unit is
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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