Draw the influence line for member BC and interpret the diagram. H 15 ft A B. 4 @ 20 ft = 80 ft-

Ans - Normal force is -41.25 kN. Also find moment at C.

Explain in depth how to come about the solution provided for this problem. I’m confused on how to draw the graph and were the numbers come from in the graphs.

Determine the force in member EB of the roof truss shown in the figure below. Indicate whether the member is in tension or compression.

Problem 2. Determine the horizontal and vertical components of the pin reaction at (B) on ABC for frame shown in the Figure. 10 N A B 1.5m C D 56 N.m 3m E- F G cord + F 1 1 1 2m 1.5m 2.5m 0.25m 3m

5- Replace the forces acting on the plate by a wrench. Specify the force and couple moment for the wrench and the point P(x, y) where its line of action intersects the plate. F, = |-300k) N %3D Fe= [200j| N 2m 500N 30 F = (4001) N

5-The piping shown below is subjected to 2 force vectors at point C and an additional force vector at mid-point between A and B. Determine the moment with respect to points, A, B and C. 100N force at point C is parallel to z axis. The vertical force between A and B is parallel to z axis. 400 mm 500N 300 mm 200 mm 200 mm 250 mm 40° F=100N 30 F = 80 N 5- Replace the given forces by an equivalent resultant force and a couple moment at point P. [In mechanics this is also known as moving forces to Point A] 75 455 N 2.5 m 2 m 0.75 m 1m Pt 60° 0.5m 600 N

Q2. Draw the influence line for ( Rb, Rc, Rf, Rg, Mp, Mm, and Mb) P m A B C D E F mm n mmm b b b

The top of the folding workbench has a mass of 38 kg with mass center at G. Calculate the magnitude of the force supported by the pin at E. 690 mm- G. D B 230 mm F H. 990 mm 1070 mm Answers: E = N

Draw the V & M diagrams. Is this beam at static equilibrium? Calculate the stress due to bending at point C and discuss it. 6m C : 10N/m 3m - B 10mm 71 10mm