A semicircular plate with radius 7 m is submerged vertically in water so that the top is 3 m above the surface. (i) Express the hydrostatic force (in N ) against one side of the plate as an integral (let the positive direction be downwards) and evaluate it. (Round your answer to the nearest whole number. Use 9.8 m/s2 for the acceleration due to gravity. Recall that the weight density of water is 1,000 kg/m3.) 2ρg∫ 3 ◻⋅(◻)dx ≈ ◻ N
