The compound beam is fixed at $A,$ pin connected at $B,$ and supported by a roller at $C.($Figure $1)$

Figure

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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 $-$ Make sure you place only one vertical line at places that require a vertical line. If you inadvertently place two vertical lines a mark it wrong.

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$V(N)$

Add discontinuity lines and select segments to add to the canvas. Draw shear and moment diagram please