Jump with parachute
Model was written in NetLogo 6.2.0
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globals [ Fluft acceleration tyngde-acceleration NLoop A dt y vy ] breed [men man] to setup clear-all set tyngde-acceleration 9.82 ;Alle fysiske størrelse er i SI-enheder set acceleration tyngde-acceleration set NLoop 100 set A 1.3 * 0.3 set dt 1.0 / NLoop set y startshøjde set vy 0 create-men 1 [ setxy 0 y ; start position set shape "person" set color red set size 8 ] reset-ticks paint-sky end ; beregn ny position og fart to go if (ticks > udløsningstid ) [ set A 10 * 5 ask men [ set shape "parachute" set size 15 set heading 0 ] ] repeat Nloop [ ; beregningerne laves med et kortere tidsinterval end skærmen opdateres set Fluft 0.5 * 1.2 * A * vy * vy ; Fluft = 0.5 · rho · A · cw · v^2 set acceleration (tyngde-acceleration - Fluft / masse) set vy ( vy - acceleration * dt ) set y ( y + vy * dt ) ] if (y < 0 ) ; stop inden manden rammer jorden [ ask patches with [ pycor < 0 ] [ set pcolor green ] print ticks stop ] ask men [setxy xcor ( y ) ] ; hvis ikke jorden er ramt endnu flyttes manden paint-sky tick ; ticks tæller antal sekunder end to paint-sky ask patches [ set pcolor 100 - ( min list ( y / 1000) 10 )] end
There is only one version of this model, created almost 3 years ago by Solveig Skadhauge.
Attached files
File | Type | Description | Last updated | |
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Jump with parachute.png | preview | Preview for 'Jump with parachute' | almost 3 years ago, by Solveig Skadhauge | Download |
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