A ceiling fan having moment of inertia 2kg -m^2 attains its maximum frequency of 60 rpm in `2 (pi)` seconds. Calculate its power rating.

A ceiling fan having moment of inertia 2 kgm^2 attains its maximum frequency of 60 rpm in 2pi seconds. Calculate its power rating.

A bar magnet of moment 2 Am^2 and having a moment of inertia 10^-6 kg-m^2 about a transverse axis passing through its centre is performing S.H.M in a magnetic induction 0.8xx10^-(5)frac(wb)(m^2) . Calculate the period of the bar magnet.

Solid sphere of diameter 25 cm and mass 25 kg rotates about an axis through its center. Calculate its moment of inertia , if its angular velocity changes from 2 rad/s to 12 rad/s in 5 second. Also calculate the torque applied.

If a uniform solid sphere of radius R and mass m rotates about a tangent and has moment of inertia 42 kg m^2 , then the moment of inertia of a solid sphere about an axis passing through its centre and perpendicular to its plane will be

A wheel of moment of inertia 2 kg m^2 is rotating about an axis passing through centre and perpendicular to its plane at a speed 60 rad//s . Due to friction, it comes to rest in 5 minutes. The angular momentum of the wheel three minutes before it stops rotating is

A metallic ring of mass 1 kg has moment of inertia 1 kg m^2 when rotating about one of its diameters. It is molten and remolded into a thin uniform disc of the same Radius. How much will its moment of inertia be, when rotated about its own axis.

A metallic ring of mass 1 kg has moment of inertia 1kg m2 when rotating about one of its diameters. It is molten and remoulded into a thin uniform disc of the same radius. H ow much will its moment of inertia be, when rotated about its own axis.

A solid sphere of diameter 25cm and mass 25kg rotates about an axis through its centre. Calculate its moment of inertia, if its angular velocity changes from 2 rad s^-1 to 12 rads^-1 in 5 seconds. Also calculate the torque applied.