Timeline for What is the difference between two types of velocity?
Current License: CC BY-SA 4.0
23 events
| when toggle format | what | by | license | comment | |
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| S Jan 22, 2021 at 12:47 | history | edited | Nihar Karve | CC BY-SA 4.0 |
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| Jan 22, 2021 at 11:27 | review | Suggested edits | |||
| S Jan 22, 2021 at 12:47 | |||||
| Jan 22, 2021 at 10:13 | answer | added | Agnius Vasiliauskas | timeline score: 0 | |
| Jan 22, 2021 at 10:13 | comment | added | joseph h | If you see $\vec v$ then velocity, and just $v$ means speed. | |
| Jan 22, 2021 at 10:11 | comment | added | gandalf61 | @James0987 $v$ is average speed and $\vec v$ is average velocity. The first is a scalar and the second is a vector. And unless the path is a straight line, they will not generally have the same magnitude - see the example in my answer. | |
| Jan 22, 2021 at 10:07 | vote | accept | James0987 | ||
| Jan 22, 2021 at 10:06 | answer | added | gandalf61 | timeline score: 2 | |
| Jan 22, 2021 at 10:02 | comment | added | James0987 | No, I mean what does the v stand for? | |
| Jan 22, 2021 at 10:01 | comment | added | joseph h | What does the question ask you to calculate? Speed or velocity? Whenever it’s speed, you do not include direction. Whenever it’s velocity, you do. | |
| Jan 22, 2021 at 9:55 | comment | added | James0987 | But are both velocity? | |
| Jan 22, 2021 at 9:54 | comment | added | joseph h | Note, as in one of my earlier comments, one is a scalar (no direction, just magnitude) speed, and the second is a vector (magnitude and direction), velocity. | |
| Jan 22, 2021 at 9:52 | answer | added | DakkVader | timeline score: 3 | |
| Jan 22, 2021 at 9:51 | comment | added | James0987 | For example someone walks 10 meters to the left and 12 meters to the right in 20 seconds. Which formula should i use to calculate the average speed and which to use when calculating average velocity? @Drjh | |
| Jan 22, 2021 at 9:51 | comment | added | joseph h | Yes. The first one is average speed and the second one is average velocity. | |
| Jan 22, 2021 at 9:49 | comment | added | joseph h | If you did not understand my last comment, please tell me which part is worrying you. | |
| Jan 22, 2021 at 9:49 | comment | added | James0987 | @Drjh Is the other one average velocity and the other average speed? | |
| Jan 22, 2021 at 9:41 | history | edited | Qmechanic♦ |
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| Jan 22, 2021 at 9:40 | comment | added | James0987 | As a beginner in physics I'm wondering if those are the same or what's the difference? @Drjh | |
| Jan 22, 2021 at 9:38 | comment | added | joseph h | If S is the distance between two points, then yes. $\Delta s = s_2 - s_1$. And in your second equation, $\Delta \vec x = \vec x_2 - \vec x_1$. Both your equations are equivalent if this is the case, and also you use vector notation in your second equation and not your first. | |
| Jan 22, 2021 at 9:33 | comment | added | joseph h | Should your first equation read $\frac{\Delta S}{\Delta t}$? It’s not clear what you are asking. | |
| Jan 22, 2021 at 9:31 | review | First posts | |||
| Jan 22, 2021 at 11:28 | |||||
| Jan 22, 2021 at 9:30 | history | edited | joseph h | CC BY-SA 4.0 |
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| Jan 22, 2021 at 9:27 | history | asked | James0987 | CC BY-SA 4.0 |