Inclined Crane Boom — Angled Cable Pull
45° crane boom pin-supported at base with a mid-boom roller and an oblique cable pull (−60, −100 N) at the tip; both horizontal and vertical cable components contribute to the moment about A — the core teaching trap.
Category: frame · Difficulty: Intermediate
Solution
| Support | Rx (N) | Ry (N) | Mz (N·m) |
|---|---|---|---|
| A | 60 | 20 | 0 |
| B | 0 | 80 | 0 |
All reaction values are computed by the StatIQ structural engine, not generated text. Signs follow the solver's convention: a positive Ry acts upward, a negative Ry downward; a positive M is counter-clockwise.