Extracted text: D 2 ft C 4 ft 2 ft 5ft BS 60° 1ft 2. A 4' x 8' sheet of plywood is set against column CD. The sheet of plywood is uniform and weighs 40 lbs (applied at its center of gravity). It rests at A and B against nails on small wood blocks. (Note the coordinate system differs from usual.) a) Draw the free body diagram for the plywood sheet b) Using a moment around axis O-x, determine the reaction at C