A solid sphere of radius 4 cm and mass 5 kg is rotating (rotation axis is passing through the centre of the sphere) with an angular velocity of 1200…

A solid sphere of radius $\displaystyle 4$ cm and mass $\displaystyle 5$ kg is rotating (rotation axis is passing through the centre of the sphere) with an angular velocity of $\displaystyle 1200$ rpm . It is brought to rest in $\displaystyle 10$ s by applying a constant torque. The torque applied and the number of rotations it made before it comes to rest are $\displaystyle \_\_\_\_$ and $\displaystyle \_\_\_\_$ respectively.