A wheel is free to rotate about its own axis without friction. A rope is wound around the wheel. If other end of rope is pulled with a constant force, then true statement from the following is

A constant resultant torque rotates a wheel about its own axis. Then true statement of the following is

A wheel whose radius is R and moment of inertia about its own axis is I, rotates freely about its own axis. A rope is wrapped on the wheel. A body of mass m is suspended from the free end of the rope. The body is released from rest. The velocity of the body after falling a distance h would be:

A metallic circular wheel is rotating about its own axis without friction. If the radius of wheel expands by 0.2% , percentage change in its angular velocity

A light rope is wound around a hollow cylinder of mass 4kg and radius 40cm. If the rope is pulled with a force of 40N, its angular acceleration is

A stationary wheel starts rotating about its own axis at constant angular acceleration. If the wheel completes 50 rotations in first 2 seconds, then the number of rotations made by itin next two seconds is

A stationary wheel starts rotating about its own axis at constant angular acceleration. If the wheel completes 50 rotations in first 2 seconds, then the number of rotations made by itin next two seconds is

A stationary wheel starts rotating about its own axis at constant angular acceleration. If the wheel completes 50 rotations in first 2 seconds, then the number of rotations mades by it in next two seconds is

One end of a rope is fastened to the ceiling of a room and the other is pulled by a force 2F. What is the tension in the rope at the lower end ?

The pulley arrangements of fig (a) and (b) are identical. The mass of the rope is negligible. In (a) the mass m is lifted up by attaching a mass 2 m to the other end of the rope. In (b) m is lifted up by pulling the other end of the rope with a constant downward force F = 2 mg. Which of the following is correct?

A fly wheel of 0.4 kg(m^-2) M.Iand of 0.2 m radius can rotate about its axis.A rope is wrapped around its circumference and pulled with 10 N force. The value of angular acceleration in rad/sec^2 will be?