The gate has water of 2-m depth on one side. The width of the gate (the dimension into the...

The gate has water of 2-m depth on one side. The width of the gate (the dimension into the page) is 4 m, and its mass is 160 kg. The mass density of the water is ρ= 1000 kg/m3, and atmospheric pressure is patm = 1 × 105 Pa. Determine the reactions on the gate at A and B. (The support at B exerts only a horizontal reaction on the gate.)