Q. The reel shown in the figure has radius
R and the moment of interval
I. One end of the block of mass
m is connected to a spring of force constant
k, and the other end is fastened to a cord wrapped around the reel. The reel axel and the incline are frictionless. The reel is wound counterclockwise so that a spring stretches a distance
d from its unstretched position and the reel is then released from rest. The angular speed of the reel when the spring is again unstretched is
![1078086_bc4770bd2bd84cbb91bb87737d1b54a9.png](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1078086_bc4770bd2bd84cbb91bb87737d1b54a9.png)