1. The problem statement, all variables and given/known data Three blocks A,B and C, whose masses are 9 kg, 9 Kg and 18 kg respectively as shown in the figure, are released from rest. The co-efficient of friction between the block A and the horizontal surface is 0.5 and The co-efficient of friction between the block B and the horizontal surface is 0.5. Find the acceleration of the block C just after the release. [Take g=10 m/s^2]. All strings and pulleys are ideal. 2. Relevant equations 3. The attempt at a solution I can't figure out how the motion of block B will affect the motion of the other two blocks. I am unable to form any equation here. Any help is appreciated. Thanks!