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| Acmlm's Board - I2 Archive - Programming - Stella & Excel (i.e. Physics) |
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KawaiiImoto-e Hammer Brother Level: 49 Posts: 902/1068 EXP: 852917 For next: 30966 Since: 03-15-04 From: In my own little complicated dreamworld Since last post: 16 days Last activity: 4 days |
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| How do I calculate the lengh a toyloco goes, if it's on a circle track, in a drawer, wich is pulled by someone. The Loco drives with Vu=0.5 m/s on the circle, the drawer is pulled with a velocity of Vk=1.2 m/s The radius of the circle is r=0.3825 m, and I have to draw (with excel or stella V.8.0) the line it draws if it goes once around the circle. I have the V for the X and Y axis (the drawer is pulled in Y axis) for every 5 |
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neotransotaku Baby Mario 戻れたら、 誰も気が付く Level: 87 Posts: 3517/4016 EXP: 6220548 For next: 172226 Since: 03-15-04 From: Outside of Time/Space Since last post: 11 hours Last activity: 1 hour |
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hmm...from the looks of the problem, you want to calculate the length of a line that looks something like this: i need to spend a little more time to help you more but this should be helpful, or you already knew this... you just need to figure out, how long one of those loops is. The straight line distance between a and b represents the change of position of the starting point of the train on that circle track so that may help you to determine distance..calculus seems to be involved because I can't think of another way to calculate arc length... (edited by neotransotaku on 07-12-05 01:37 PM) (edited by neotransotaku on 07-12-05 01:38 PM) |
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KawaiiImoto-e Hammer Brother Level: 49 Posts: 904/1068 EXP: 852917 For next: 30966 Since: 03-15-04 From: In my own little complicated dreamworld Since last post: 16 days Last activity: 4 days |
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| EDIT: I solved the provlem, if anyones interessted, PM me. Old Post: I got down to some formulas: Calculations for the Train: Y-Axis Velocity SIN(270-Position)*0.5 m/s where position is the difference in dagrees from startingpoint to where it is now. X-Axis Velocity COS(270-Position)*0.5 m/s Drawer Y-Axis is 1.2 m/s Here a screenshot of the Diagramm and Spreadsheet. Linked Screenshot (edited by KawaiiImoto-e on 07-13-05 10:27 AM) |
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