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183_notes:static_eq [2021/05/08 19:00] – [Why torque matters] stumptyl | 183_notes:static_eq [2021/11/15 17:19] – [Lecture Video] pwirving | ||
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==== Lecture Video ===== | ==== Lecture Video ===== | ||
- | {{youtube> | + | {{youtube> |
+ | |||
===== Defining Static Equilibrium ===== | ===== Defining Static Equilibrium ===== | ||
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$$\sum F_x = 0 \qquad \sum F_y = 0$$ | $$\sum F_x = 0 \qquad \sum F_y = 0$$ | ||
- | If the sum of all the forces is zero then static equilibrium is possible but **not** guaranteed. | + | //If the sum of all the forces is zero then static equilibrium is possible but **not** guaranteed.// |
- | [{{ 183_notes:statics_bar.png?250|A bar with two identically sized forces acting on it.}}] | + | [{{ 183_notes:week12_staticpivotforces.png?350|A bar with two identically sized forces acting on it.}}] |
==== Why Torque Matters ==== | ==== Why Torque Matters ==== |