What’s on the Supports & Reactions poster
A 6-row table: Support · Blocks · Unknowns.
Unknown count is for plane problems unless marked.
- Roller — Motion normal to the surface — 1
- Pin or hinge — Motion in both directions — 2
- Fixed or built-in — Both motions and rotation — 3
- Cable — Motion along the cable — 1
- Smooth contact — Motion into the surface — 1
- Ball and socket, 3D — All three translations — 3
A cable pulls only; it can never push. If your answer puts a cable in compression, it is slack.
Questions about the Supports & Reactions poster
- What’s on the Supports & Reactions poster?
- A 6-row table: Support · Blocks · Unknowns. Unknown count is for plane problems unless marked. Roller — Motion normal to the surface — 1; Pin or hinge — Motion in both directions — 2; Fixed or built-in — Both motions and rotation — 3; Cable — Motion along the cable — 1; Smooth contact — Motion into the surface — 1; Ball and socket, 3D — All three translations — 3. A cable pulls only; it can never push. If your answer puts a cable in compression, it is slack.
- Who is the Supports & Reactions poster for?
- Supports & Reactions belongs to the Mechanical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning statics & dynamics can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Supports & Reactions poster?
- When you are drawing a free body and need to know what to put at each end. A wall chart earns its place by being glanceable from where the work is happening, so Supports & Reactions belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with Supports & Reactions?
- Drawing a Free Body, Finding a Centroid and Dry Friction sit alongside Supports & Reactions in the Mechanical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Drawing a Free BodyFinding a CentroidDry Friction
- Is the Supports & Reactions poster free to download and print?
- Yes. Supports & Reactions downloads as a free PDF with no account, no email and no watermark, like everything else in the Mechanical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Supports & Reactions poster print at?
- Supports & Reactions is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Supports & Reactions loses nothing.Printing guide
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Energy or Momentum?
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Static Equilibrium
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Free Vibration
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Motion Coordinates
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Rigid-Body Kinetics
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