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C5.9. Demo: Drawing of FBD and obtaining reactions

a) Draw the corresponding free body diagram:

(The expected tolerance is 1/2 square grid for position and 10 degrees for angle.)

Additional attempts available with new variants

Collection 5

Assessment overview

Total points:	0/96
Score:	0%

Question C5.9

Value:	2
All variants: Open (current)
Total points:	— /6
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Question

QID:

demo/drawing/inclinedPlane

Title:

Demo: Drawing of FBD and obtaining reactions

Variant

Started at:

2026-08-04 16:39:21 (CDT)

Duration:

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{
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      "x1": 80,
      "x2": 200,
      "x3": 360,
      "y1": 320,
      "y2": 130,
      "y3": 130,
      "type": "pl-3pointrod",
      "color": "#ffffff",
      "graded": false,
      "height": 20,
      "label1": "A",
      "label2": "B",
      "label3": "C",
      "stroke": "#000000",
      "drawPin": true,
      "evented": false,
      "offsetx1": 20,
      "offsetx2": 0,
      "offsetx3": 0,
      "offsety1": -20,
      "offsety2": 10,
      "offsety3": 10,
      "selectable": false,
      "gradingName": "pl-3pointrod",
      "strokeWidth": 2
    },
    {
      "id": 1,
      "top": 130,
      "fill": "#000000",
      "left": 360,
      "type": "pl-arc-dimensions",
      "angle": 0,
      "label": "\\\\theta",
      "graded": false,
      "radius": 60,
      "stroke": "#000000",
      "evented": false,
      "offsetx": 10,
      "offsety": 0,
      "originY": "center",
      "endAngle": 0,
      "selectable": false,
      "startAngle": -50,
      "gradingName": "pl-arc-dimensions",
      "strokeWidth": 1,
      "drawEndArrow": true,
      "drawStartArrow": true,
      "endSupportLine": true,
      "drawCenterPoint": false,
      "startSupportLine": true,
      "arrowheadWidthRatio": 1,
      "arrowheadOffsetRatio": 1
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      "angle": -140,
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      "offsety": 2,
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      "gradingName": "pl-vector",
      "strokeWidth": 3,
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      "drawEndArrow": true,
      "drawErrorBox": true,
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      "heightErrorBox": 20,
      "offset_forward": 0,
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      "YcenterErrorBox": 149.2836282905962,
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  ]
}

Assessment instance

Assessment:

gallery/drawingElements