Timeline for Magnitude of instantaneous velocity vs speed
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Feb 10, 2017 at 12:07 | history | edited | Qmechanic♦ |
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| Feb 9, 2017 at 18:20 | vote | accept | xasthor | ||
| Feb 9, 2017 at 17:41 | answer | added | Ng Chung Tak | timeline score: 2 | |
| Feb 9, 2017 at 17:18 | answer | added | JMac | timeline score: 3 | |
| Feb 9, 2017 at 17:15 | comment | added | JMac | Sure, I just thought there might have been something from the question that I misinterpreted. It's also good practice to wait before accepting answers in case a better one comes along; but I'll leave that to your judgement. | |
| Feb 9, 2017 at 17:14 | comment | added | xasthor | Can you post that as an answer so I can accept it? Also, is this always the case? (Instantaneous speed being equal to the modulus of dr/dt and also equal to ds/dt?) | |
| Feb 9, 2017 at 17:09 | comment | added | JMac | Why would they not be equal? For both you are only travelling an infinitesimal amount. The difference between $\Delta r$ and $\Delta s$ goes away as $\Delta$ becomes smaller. In this case it's $ds$ and $dr$ which is the limit where they become equal. | |
| Feb 9, 2017 at 16:59 | history | asked | xasthor | CC BY-SA 3.0 |