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PHY.6:3 - Forces
| Force | Tension |
| General balance and particular response | Conservation restricts change; material and interaction laws determine much of the remaining behavior. |
| Reusable parts and coupled behavior | A part’s relation can remain useful while its boundary conditions change when connected. |
| Ideal connection and physical preparation | An ideal constraint can simplify later evolution while excluding the supplied initial state. |
| Physical detail and sufficient answer | A total or a bound may answer the question even when a detailed trajectory remains undetermined. |
| Available grounds and conditional use | An established response supports a stronger physical claim than an untested working hypothesis, while both can support useful conditional reasoning. |