Question

hello guys, please help me solve this question, please guys I need your help. this is one questions with 2 parts as shown, thank you

part1 You are planning on installing a new above-ground swimming pool in your backyard. The pool will be rectangular with dimensions 29.0 m x 10.0 m. It will be filled with fresh water to a depth of 2.20 m. In order to provide the appropriate structural support, you wish to determine the following. (a) Determine the force exerted on the bottom of the pool by the water (in N). N (b) Determine the force exerted on each end of the pool by the water (in N). (Assume the end is the 10.0 m wall.) N (c) Determine the force exerted on each side of the pool by the water (in N). (Assume the side is the 29.0 m wall.) N (d) You wish to have swimming parties with your children and grandchildren. At a given time, you might have 27 people with an average mass of 75.0 kg in the pool. You need to determine if such parties will affect your calculations for the required strength of materials supporting your pool. The parties will not affect the required strength since the forces on the surfaces will increase by less than 1%. O The parties will affect the required strength since the forces on the surfaces will increase by more than 1%. I part2 A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. If the chair legs are circular and have a radius of 0.500 cm at the bottom, what pressure does each leg exert on the floor? Pa

Answer 1

A = LXB = 29810 = 290m² h = 2.20m Ę = 3gha = 1000x 9,81X2.20%290 fo = 6258780 N F = 6.3X106 N Fend = f g h .A, Flooox 9.81X 22 x (1042, 2) = ?37402 Fend = 2,378105N Fride = 29/4/2) A 1000x9.61 x 4.2x (229X2,3) = 688 465. &N Fside 6, 8B X10 N W = Ning = 27X75X9.61 - 19865.25 = 0,32 % 7. Enor 19865.25X100 6.38106 option @ is correct Pressure f there f = mg 9 5X 9.81 232.99 N F P = 232.99 6 TX 0.5 X10 -4 = P = 2.967 8100 Pa