Question

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 15s, the magnitude of average
torque transmitted by its brakes to the wheel is : [2015 RS]
(a) 8.58 kg m² s⁻² (b) 10.86 kg m² s⁻²
(c) 2.86 kg m² s⁻² (d) 6.66 kg m² s⁻²

Answer 1

Answer:

a) 8000 b) 1036. c) 2860 d) 6660