Talk:Q11402
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Autodescription — force (Q11402)
description: physical influence that tends to cause an object to change motion unless opposed by other forces
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Multiple defining formulas[edit]
The defining formula of force according to ISO 80000-4:2006 Quantities and units—Part 4: Mechanics (Q26711933) (item 4-9.1) is . In a note it also mentions the special case for a particle of constant mass . How should we model this, given the single-value constraint of in defining formula (P7235)? I think that having at most one defining formula is good. It works nice with in defining formula (P7235) and calculated from (P4934). If we allowed multiple defining formulas then the use of the latter properties might become ambiguous (in general). So for now I removed the special case. If it is desirable to have it somewhere then we could have a separate item ("force of a constant-mass particle"). Toni 001 (talk) 11:48, 17 December 2019 (UTC)
- Where is single-value constraint? Actually it was more then expected to have several defining formula (P2534). And so calculated from (P4934) claims are genuinly ambigous. Probably some model with qualifiers would fit. --Infovarius (talk) 16:42, 18 December 2019 (UTC)
- defining formula (P2534) has a single value constraint. Do you have an example where an item should have more than one defining formula - say, where neither formula is a special case of the other? Toni 001 (talk) 20:13, 18 December 2019 (UTC)