Problem 1: A 850 N father and 200 N son sit on either ends of a 3 meter, 100 N seesaw as shown in the figure below. 850 N 200 N 100 N a) Draw an Extended Body Diagram for the board. b) Calculate how far from the center of mass of the board (where the 100 N force has been drawn) the pivot should be placed in order to have them stay balanced. c) Draw a Free Body Diagram for the board. d) Calculate the magnitude of normal force by the pivot on the board.