An open tank has a vertical partition and on one side contains gasoline with a density =700 kg/m3 at a depth of 4 m, as shown. A rectangular gate that is 4 m high and 2 m wide and hinged at one end...

An open tank has a vertical partition and on one side contains gasoline with a density  =700 kg/m3 at a depth of 4 m, as shown. A rectangular gate that is 4 m high and 2 m wide and hinged at one end is located in the partition. Water is slowly added to the empty side of the tank. At what depth, h, will
the gate start to open?

Extracted text: -Partition Stop 4 m Gasoline Water Hinge