20 20. Solve for Equilibrium. Find Forces in connectionstand 2000# 70#/ft 2) 2-2 20. Solve for Equilibrium. Fin...
Solve for the reaction forces at A and B. 3 ft -2 ft 900 lb/ft 400 lb/ft A Ов 3.5 1.5ft
Find the forces on each member P, = 500 lb 8 ft 2 ft 2 ft B
CO-3.8. To solve 2-Dimensional equilibrium problems, the first step is to: (A) sum forces in the x-direction (B) sum forces in the y-direction (C) sum the moment about a point with the most forces (D) sketch a free-body diagram CO-3.9. A wood column of air-dried Douglas fir is 10-ft long and has a 6-in x 6-in rectangular cross- section (E = 1900 Ksi). The slenderness ratio is nearest to: (A) 50.4 (B) 60.4 (C) 69.4 (D) 73.4
2. 120 ft Pump Fig.2 Water at 20 °C is to be pumped through 2000 ft of pipe from reservoir 1 to 2 at a rate of 3 ft'/sec as shown in Fig.2. If the pipe is cast iron of diameter 6 in and the pump is 75 % Efficient, what horsepow pump is needed?
E is constant, find the reaction forces and moments Using the Moment Distribution Method (modified stiffness approach) 240 lb/ft 300 in4 600 in4 20 ft 15 ft E is constant, find the reaction forces and moments Using the Moment Distribution Method (modified stiffness approach) 240 lb/ft 300 in4 600 in4 20 ft 15 ft
Three-dimensional Force Systems 3 ore To use the conditions of equilibrium to solve for unknown forces in a three-dimensional force system For particle equilibrium, the sum of all forces must be zero F. 0 If the forces are resolved into the land k components the condition for equilibrium becomes F.i+ J+Fk0 which results in the following three scalar component equations that can be used to solve for unknowns: F = 0 F. 0 SF-0 F = 0 and the equations...
2 ft 3 ft 200 lb Using a force meter, the following forces were measured for the truss above, subject of 2 external forces: o in 2 supports: 160lb, 2001b, 160lb o in 3 members: 1201b (T), 1791b (T), 2001b (C) Assign these force values to each support and member so that the structure is in equilibrium.
c) Solve for internal forces just to the left of point C 5 k/ft A В C 7' 3'
1.5 k/ft 20 ft 2) Assume A and Dare both pinned. Joints B and C are rigid Solve the problem by hand: find the reactions and draw the shear and moment diagram for each member. a.
20 kip 3. Four of the five forces that act on the joint of a truss are shown below. Find the direction and magnitude of a fifth force that will bring the joint into equilibrium. 10 kip W 80 V o 70 70 kip 90 kip