Gate AB in fig 2 is a one-quarter circle, 5 m wide into the paper, hinged at B and resting on a smooth wall at A.
a) Find the total horizontal force on the surface.
b) Find the total vertical force on the surface.
c) Find the point of application (Center of Force) of the resultant force from point A (XA, XB)).
d) Compute the reaction forces at A and B
I included diagram and questions too.