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An automobile moves on a road with a speed of 54 km h⁻¹. The radius of its wheels is 0.45 m and the moment of inertia of the wheel about its axis of rotation is 3 kg m². If the vehicle is brought to rest in 15 s, the magnitude of average torque transmitted by its brakes to the wheel is
Options
(a) 10.86 kg m² s⁻²
(b) 2.86 kg m² s⁻²
(c) 6.66 kg m² s⁻²
(d) 8.58 kg m² s⁻²
Correct Answer:
6.66 kg m² s⁻²
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Motion of system of Particles and Rigid Body
(73)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When ₃Li⁷ nuclei are bombarded by protons, and the resultant nuclei are ₄Be⁸,
- A galvanometer has a resistance 50Ω. A resistance of 5Ω is connected parallel to it.
- A body revolved around the sun 27 times faster than the earth. What is the ratio
- The Rutherford scattering experiment proves that an atom consists of
- Zenor diode is used for
Topics: Motion of system of Particles and Rigid Body (73)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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