A block of mass 6 kg rests in equilibrium on a rough plane which is inclined at an angle of 11^? to the horizontal. It is attached by light strings, via smooth pulleys, to a block of mass 1 kg which hangs freely as shown on the left hand side of the diagram and a block of mass M kg hanging freely on the right hand side of the diagram. The coefficient between the middle block and the plane is 0.2.

a) Draw all the forces acting on each of the three blocks (assume that friction is acting up the plane where applicable):

B 110 C A