A wheel 4m in diameter rotates about a fixed frictionless horizontal axis through its centre,about which its moment of inertia is `10kgm^(2)` . A constant tension of `40N` is maintained on a light rope wrapped around the rim of the wheel.If the wheel starts from rest at t=0s ,find the speed of uppermost point of disc at t=3s.

A wheel having moment of inertia 4 kg m^(2) about its axis, rotates at rate of 240 rpm about it. The torque which can stop the rotation of the wheel in one minute is :-

A wheel is at rest in the horizontal position. Its moment of inertia about a vertical axis passing through its centre is "15 kgm"^(2) . A constant torque of 300 N-m is now applied to it for 5 second. What is the change in its kinetic energy?

A wheel having moment of inertia 2 kig m^2 about its xis, rotates at 50 rpm about this axis. Find the torque that can stop the wheel in one minute.

The moment of inertia of a wheel of radius 10cm is 20kgm^(2) ,If a tangential force of 40N applied on the wheel,its Rotational K.E.after 2s is ?

An uniform disc is rotating at a constant speed in a vertical plane about a fixed horizontal axis passing through the centre of the disc. A piece of the disc from its rim detaches itself from the disc at the instant when it is at horizontal level with the centre of the disc and moving upwards, then about the fixed axis. STATEMENT-1 : Angular speed of the disc about the aixs of rotation will increase. and STATEMENT-2 : Moment of inertia of the disc is decreased about the axis of rotation.

a ferris wheel is turnig about a horizontal axis through its centre. The linear speed of a passenger siting on the rim is constant. Which one of the following sentences about the passenger's acceleration is correct ?

The moment of inertia of a disc rotating about an axis passing through its centre and perpendicular to its axis is 20 kgm^(2) . If its rotational K.E. is 10 J, then its angular momentum will be

The moment of inertia of a circular disc about an axis passing through its centre and perpendicular to the plane is 4 kg m^(2) . Its moment of inertia about the diameter is