Need help in part 3 only

And I want a typed answer by keyboard

Question: Two massesr m. = LOGIr kg and m: = 1.28 kg. are connected with a light inextendaple cord going over a pulley [Figure 2}. The pulley consists of a disk of mass mu. = 1.?3 kg and radius R = 11.3 cm. The mass m. sits on a plane inclined at an angle .9 = 39.9 to the horizontal. Let T. stand for the tension in the cord between the pulley and m. . and T1 stand for the tension in the cord between the pulleyr and m2. Assume the plane is frictionless. The moment of inertia of a disk with mass m and radius r is 11113. Figure 1: Diagrammatic representation of an plane which slopes down trom left to right and is inclined at an angle of .9 degrees to the horizontal. At the top of the plane is a pulley of radius R. Two blocks of masses m1 and m; are attached to each other via a cord, which runs over the pulley. The block of mass on is sitting on the slope and the block of mass or; is hanging over the edge of the inclined plane. Part 1) Use Newton's second law for rotation to write an expression for In: in terms of T] . T2. R and any other constants you need. Your last answer was interpreted as follows: (T1 T2] ~ R Part 2} What is the magnitude of the acceleration of the blocks? Your last answer was interpreted as follows: 113] Part 3) Suppose that friction can no longer be neglected. The coefficients of friction between on and the plane are m. = 0' ITS and pic = 011551 What is the acceleration now