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Introduction and mechanics foundations2D

Mechanics idealization selector

Fundamental quantities, equilibrium boundaries, units, idealizations, and vector construction used throughout rigid-body statics.

Open the complete lesson

Advanced engineering statics simulation

Introduction to Statics Laboratory

Five mechanics-foundation models with explicit units, assumptions, and independent calculations.

Test the ratios that support particle, rigid-body, and concentrated-load approximations.

Body size / motion scale
0.030
0.005–0.200

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

Load patch / body span
0.040
0.005–0.200

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

Deformation / body span
0.0020
0.0005–0.0200

Drag for exploration or enter an exact value. Press Enter to apply and Escape to restore.

Idealization is controlled approximationThe displayed ratios are screening guidance, not universal design limits.Particlesize/span = 0.030Concentrated loadpatch/span = 0.040Rigid bodydeformation/span = 0.0020
particle plausiblepoint load plausiblerigid model plausible

Concept question: Predict how many of the three displayed idealizations pass the screening limits.

Model scope and verification

Scope: Educational mechanics models using ideal forces, rigid geometry where stated, and explicit SI/US conversion constants. Idealization thresholds are screening guidance, not universal design limits.

Acceptance check: Check dimensions first, then verify force balance, W = mg, exact conversion factors, the stated screening thresholds, or Cartesian component addition. Vector labels use a fixed legend so coincident and zero-resultant cases remain readable.

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