Current Attempt in Progress

A rectangular gate that is $2$ m wide is located in the vertical wall of a tank containing water as shown in the figure below. It is desired to

have the gate open automatically when the depth of water above the top of the gate reaches $8\mathrm{.}5$ m $.($a$)$ At what distance, $d,$ should the

frictionless horizontal shaft be located? $($b$)$ What is the magnitude of the force on the gate when it is closed?

$($a$)d=$

m

$($b$)F_R=$

kN