A brass bar, having square cross-section of side 50 mm, is subjected to axial forces as shown in figure. 80 KN 600 mm 120 KN 1200 mm- 20 kN 600 mm 20 KN If the modulus elasticity of bar is 105 N/mm², then the total change in magnitude of length of bar is mm (round off to three decimal places).

Determine the internal normal force and shear force, and the bending moment in the beam at points Cand D. Assume the support at B is a roller. Point Cis located just to the right of the load P which is equal to 78.1N. Report the Bending moment in the beam at point D (Mp) here in Moodle. NB: • FBDS are required • Your answer should contain ALL the necessary steps

AWTHE FIGURE. DVIDE COMPLETE SOLUTION. T FOLLOWING INSTRUCTION VWILL GET ZERO, cermine the reaction at supports and compute the force in members: ca, cd, and cf u may use any method.) ulate your final answers: MBER// FORCE, KN/ COMPRESSION OR TESNSION 5m 30 40KN 5m 5m 6m Show all 99

3. The roof truss is subjected to the loadings shown. Determine the force in each member and indicate if the members are in tension or compression. Approximate each joint as a pin. 200 N C 300 N 300 N 1.5 m B, D. 4 m 3 т H 3т G F 3 m 3 т o00 00 00 o oo 150 N Paint X ite

answer only letters D and E

Consider the loads of the figure to be axially applied at sections B, C, and D to the concrete structure supported at A. IW E F P G 5 kN 5 kN A Determine P in kN when member BC is 24 mm in diameter, the axial stress in section F is 588 MPa, and W 309822 N. = 10 kN C 10 kN Rigid -bearing plates

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