A beam is shown in the figure below. $($Figure $1)$

Figure$1$ of $1$

A horizontal beam is supported by a pin at its left end $\text{'}$A$\text{'}$ and supported by a roller at point B on the beam. The free right end of the beam is marked as C$.$ Point B is $2$ meters to the left of end C and $4$ meters to the right of end $\text{'}$A$\text{'}.$ Both the pin and the roller are mounted on a horizontal surface. A distributed load of $20$ kilonewtons per meter acts vertically downward on segment $\text{'}$A$\text{'}$ B of the beam. A point load of $20$ kilonewtons acts vertically downward on end C of the beam.

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.

Note $3-$ Be sure to indicate the correct types of the functions between the lines, e$.$g$.$ in your answer the type of a function is "linear increasing slope" for the function that actually has linear decreasing slope, the answer will be graded as incorrect. Use the button "change segment" if necessary.

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A horizontal beam is supported by a pin at its left end $\text{'}$A$\text{'}$ and supported by a roller at point B on the beam. The free right end of the beam is marked as C$.$ Point B is $2$ meters to the left of end C and $4$ meters to the right of end $\text{'}$A$\text{'}.$ Both the pin and the roller are mounted on a horizontal surface. A distributed load of $20$ kilonewtons per meter acts vertically downward on segment $\text{'}$A$\text{'}$ B of the beam. A point load of $20$ kilonewtons acts vertically downward on end C of the beam. Distance x is measured horizontally rightward from the left end of the beam.

x$($m$)$

V$($kN$)$

$0$

$1$

$2$

$3$

$4$

$5$

$6$

$-60$

$-40$

$-20$

$0$

$20$

$40$

$60$

Add discontinuity lines and select segments to add to the canvas.

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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 $5-$ 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.

Note $6-$ Be sure to indicate the correct types of the functions between the lines, e$.$g$.$ in your answer the type of a function is "linear increasing slope" for the function that actually has linear decreasing slope, the answer will be graded as incorrect. Use the button "change segment" if necessary.