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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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- Two simple harmonic motions of angular frequency 100 and 1000 rad s⁻¹ have the same
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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
- A p-n photodiode is fabricated from a semiconductor with a band gap of 2.5 eV.
- Two simple harmonic motions of angular frequency 100 and 1000 rad s⁻¹ have the same
- If the band gap between valence band and conduction band in a material is 5.0 eV,
- If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
- Two closed pipes produce 10 beats per second when emitting their fundamental nodes.
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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