3. [10 points] In the figure shown below, three blocks are connected by two inextensible strings over two frictionless pulleys. The masses of the blocks are m1 = 15.0 kg, m2 = 8.0 kg and m3 = 6.0 kg. The block with mass m1 is on the incline with 6 = 37 and the block with mass m2 is on a horizontal frictionless surface. The coefficient of kinetic friction between the block with mass m1 and the incline is ,uk = 0.40. At this instance, the system of blocks is observed to move with a small velocity in the direction as shown. The strings are taut at all times. oiwvyc'ss String 1 m2 String 2 a. Using the diag)rams below, indicate the forces acting on each block (with labelled arrows. X if b. By applying NeWton' 3 second law for the blocks, calculate acceleration of the system and the tension T1 in string 1 at this instance