A weight with mass mw = 150 g is tied to a piece of thread wrapped around a spool, which is suspended in such a way that it can rotate freely. When the weight is released, it accelerates toward the floor as the thread unwinds.
Assume that the spool can be treated as a uniform solid cylinder of radius R = 3.00 cm and mass Ms = 200 g. Find the magnitude a of the acceleration of the weight as it descends. Assume the thread has negligible mass and does not slip or stretch as it unwinds.
Use g = 9.81 m/s^2.
Find the tension T in the thread.