Timeline for Newton's Second Law with unit vectors
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 14, 2017 at 16:18 | comment | added | Steeven | @EdwardSmith Click here chat.stackexchange.com/rooms/info/62223/… | |
| Jul 14, 2017 at 11:00 | history | edited | Steeven | CC BY-SA 3.0 |
added 110 characters in body
|
| Jul 14, 2017 at 6:40 | history | edited | Steeven | CC BY-SA 3.0 |
added 4 characters in body
|
| Jul 14, 2017 at 6:35 | comment | added | Steeven | @EdwardSmith When a vector is described from two and not just one unit vectors, then you have more unknowns yes. This is no problem, just more math to solve. If you are working on a situation with several vectors pointing in different directions, then it is not possible to invent a new coordinate system that is along them all. So some of them will have more than one term. Sometimes it is helpful to tilt the coordinate system, while other times it is not helping much. | |
| Jul 14, 2017 at 6:35 | comment | added | Steeven | @EdwardSmith You can add vectors, when they are written in the same coordinates (in the same coordinate system). | |
| Jul 14, 2017 at 0:08 | comment | added | Edward | Also what about the case when the unit vector is with respect to two directions? e.g. F_g = F_g,x + F_g,y +0. Then I have 2 unknowns! | |
| Jul 13, 2017 at 23:53 | comment | added | Edward | I love you! This makes perfect sense! But if I have two force vectors, for example, if I have gravity and electric, do both vectors get "converted" to this new coordinate system if I use it, or only one gets converted. Example: (F_e,x + Fe,y + Fe,z) + (0 + Fg,y + 0) (not converted) or (F_e,x + Fe,y + Fe,z) + (0r + Fg,p + 0q)? | |
| Jul 13, 2017 at 23:51 | vote | accept | Edward | ||
| Jul 13, 2017 at 20:27 | history | answered | Steeven | CC BY-SA 3.0 |