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C.16.IR:3 - Forces
| Force | Tension |
|---|
| Convenient answer and remaining alternatives | One number is easy to use; several values may fit the same reading. |
| Target and influential quantities | Full parameter recovery can be costly; the sought quantity may already be determined. |
| Exact data and uncertain data | An ideal relation may have one solution while the actual error range permits many. |
| Complete computation and sufficient conclusion | Describing the entire compatible set can be expensive; a bound can answer the working question. |
| Additional observation and changed subject | A second reading can distinguish alternatives only under the relations that connect the two measurement situations. |
| Calculation and model revision | Inconsistent premises require diagnosis; forcing a numerical answer can conceal the conflict. |