Question

not sure how to solve #2

b) What is the buoyant force on it? c) What is the magnitude of the downward force you are exerting to hold the block under water? 377N 2. In the diagram, the hinge is frictionless and the system is in equilibrium. The uniform beam is 4 meters long and has a mass of 150 kg. The mass hanging from the end of the beam is 175 kg. The beam wire is attached lm from the end. Calculate a) the tension in the beam wire b) the horizontal and vertical components of the force exerted by the hinge on the beam. 11,10ON -1910N beam wire 130 40 hinge 3. A concrete cube, 0.5 meters on each side, is lowered beneath the surface of Seneca At what depth is the water around it exerting an inward force of 1.7x10s newtons

Answer 1

175kg O 40 -4027 migt Irong Balancing the forces, No$40 = TW270 - N Sin 40° - TSin 27 +(m, tme) g - tan 40 = T Sin 27 +(m, amalg Tos27 T(0.454)+(150 +175)98 (0.839) (0.891) T H0454 074755 - 0.748T -0.454 T = 3185 T - 3185 N = 10,833 33 1 ~ 11000N 0. 294

b) NAE N $$40° = TL227 = '10833.3 6.27 2965227 N gf T = 11000 N is used Nye 11000 C0227 a 9goon & Neg a N Sin 40 = T Sin 27 +(m, tm2) g = (10,833) Şin 21 + 225x9-8) - 8103.08 N

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