1. The problem statement, all variables and given/known data Uniform rod AB with end B resting against rough vertical wall. Coefficient of friction between wall and rod is μ. Rod is 2m long and has mass 3kg. Rod is kept in limiting equilibrium by a light inextensible string, one end of which is attached to the end A of the rod and the other to point C on the wall 2m above B. Angle ABC=120°. The end B of the rod is about to slip down the wall. 1. By taking moments about C, show that the normal reaction at B is approx. 12.7N. 2. Find the value of μ. PS: A labelled diagram would be very helpful! Thanks! 2. Relevant equations n/a 3. The attempt at a solution Have been able to sketch what I think are all the forces acting on the rod, but does the normal reaction + friction + T-resolved = downward force of 2g-resolved? Do I take the weight of the rod to act from the centre?