(1) As shown in the figure: Draw a line segment with an arrow in the vertical downward direction after passing through point A, which is indicated by the symbol F2; Draw a line segment with an arrow along the vertical direction at the contact point between the passer and the ground, which is represented by the symbol F 1 Pass through the fulcrum o, perpendicular to the line of action of the force, that is, the arm of force L 1 and L2, as shown in the figure:

(2) As shown in the figure, according to the lever balance condition F×OB=G×OA,

Support from the ground to the hands:

f = g×OAOB = 600n× 1m 1.5m = 400n，

(3) Ground pressure:

F′= F = 400n，

Hands on the ground:

p = F’S = 400n 0.0 16× 1 m2 = 1.25× 104 pa。

Answer: (1) opinion map;

(2) Ground opponents support 400 N;

(3) The hand pressure on the ground is 1.25× 104 Pa.