The homogeneous gate weighs 100 lb, and its width (the dimension into the page) is 3 ft. T...

The homogeneous gate weighs 100 lb, and its width (the dimension into the page) is 3 ft. The weight density of the water is γ = 62.4 lb/ft3, and atmospheric pressure is patm = 2120 lb/ft2. Determine the reactions at A and B.