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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
- Which of the following are mechanical waves?
- If two vectors are equal in magnitude and their resultant is also equal in magnitude
- The ionisation energy of hydrogen is 13.6 eV. The energy of the photon released
- A potentiometer wire is 100cm long and a constant potential difference is maintained
- If angular momentum of a body is increased by 200% its kinetic energy will increase
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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