Answer Happy

Part A Draw the shear diagram for the beam. Click on "add vertical line off" to add discontinuity lines. Then click on "add segment" button to add functions between the lines. Note 1 - Make sure you place only one vertical line at places that require a vertical line. If you inadvertently place two vertical lines at the same place, it will appear correct visually because the lines overlap, but the system will mark it wrong. Note 2 - You should not draw an "extra" vertical line at the point where the shear curve passes the x-axis. E 12 kN/m 30 kNm No elements selected 5 m 5 m V (kN) 50 40 30 20 10 0 - 0 I (m) -10 -20 -30- -40 -50

Part B Draw the moment diagram for the beam. Click on "add vertical line off" to add discontinuity lines. Then click on "add segment" button to add functions between the lines. Note 1 - Make sure you place only one vertical line at places that require a vertical line. If you inadvertently place two vertical lines at the same place, it will appear correct visually because the lines overlap, but the system will mark it wrong. Note 2 - Draw a vertical line to denote local maximum or minimum. Note 3 - The curve you choose from the drop-down is only a pictorial representation of a real quadratic/cubic curve. The equation of this curve is not mathematically equivalent to the correct answer. Consequently, slopes at discontinuities and intercepts with the x- axis (if any) are not accurate. G 12 kN/m 30 kNm B 5 m 5 m No elements selected M (kNm) 120 100 80 60 40 20 (m) 0 0 -20+ 10 -40 -60 -80 -100+ -120