A hanging mass is tied to a string which is wrapped around a pulley. The initially rotates counterclockwise and is pulling the weight up. The tension in the rope creates a torque on the pulley that opposes this rotation

A . On the axes below, draw a graph of the angular velocity versus time for the
period from the initial instant shown until the weight comes back down to its
initial height. Take the initial angular velocity as positive.
b. Draw a graph of the angular acceleration versus time for the same time
period.