A uniform disc of mass 500 kg and radius 2 metres is rotating at the rate of 600 rpm. What is the torque required to rotate the disc in the opposite direction with the same speed in a time of 100 seconds?

A ring of mass 100 kg and diameter 2 m is rotating at the rate of (300/(pi)) rpm. Then

A ring of mass 100 kg and diameter 2 m is rotating at the rate of (300/(pi)) rpm. Then

A solid sphere of mass 2 kg and radius 5 cm is rotating at the rate of 300 rpm. The torque required to stop it in 2pi revolutions is

A solid sphere of mass 2 kg and radius 5 cm is rotating at the rate of 300 rpm. The torque required to stop it in 2pi revolutions is

A solid disc of mass 1kg and radius 10cm is rotating at the rate of 240 rpm.The torque required to stop it in 4 pi revolutions is?

A solid cylinder of mass 2 kg and radius 4 cm is rotating about its axis at the rate of 3 rpm. The torque required to stop it after 2 pi revolutions is

A wheel of mass 1000 kg and radius 1 m is rotating at the rate of 420 r.p.m . What is the constant torque required to stop the wheel in 14 rotations , assuming the mass to be con-centrated at the rim of the wheel ?

A solid cylinder of mass 2 kg and radius 4 cm is rotating about its aXIIs at the rate of 3 rpm. The torque required to stop after 2pi revolutions is