Find the unknown forces in the structure below. 5 4 50 kN B F F₁

HW Determine the resultant force at pins A, B, and C on the three-member frame. 2 m 800 N Ans: A, = 61.88 N A, = 569.06 N %3D Fe = 572 N FA = 572 N Fg = 478 N 200 N/m B = 338.12 N B, = 338.12 N C, = 461.88 N 2 m %3D C, = - 338.12 N %3D 60 B

Where is neutral axis of the gutter section with reference from the bottom of the channel? What is the moment of inertia of the section with respect to the X-axis? What is the reaction of the hinge support at B? What is the maximum flexural stress of the beam? What is the flexural stress 3 ft. from the roller support at D ?

PROBLEM 2 30 kN - 25 KN→A E Using method of joints, determine the force in 6 m 13 12 members DE, CE, CD, & AC of the truss shown. 50 kN- C 6 m A B 5 m (a) Random Answers: 65 kN (C), 130kN (T), 50kN (C), 65 kN (T), 30kN (T), 50KN (T),

Determine the forces in members DE, DI, and JI of the arched roof truss shown below.

13. From the given sets of parallel forces shown. 20 KN 50 KN 30 KN 40 KN 30 KN Locate the location of the resultant from the left support. • 6.5 m • 7.5 m 0.4 m 2m 3.5m 2.5m 4m 2m 13.6 m None of the Above