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Poster Message
Indrek
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Kuna ei ole endal vanu õpikuid välja kaevata, äkki keegi ütleks valemi, kui on teada ratta pöörlemiskiirus pööret minutis, ratta raadius cm`des, vaja oleks teada, palju oleks sel juhul kiirus km/h?

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08.12.2006 at 19:20
Fog
 
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ratta raadius=r
PI=3,14.......


r*2*PI = ümbermõõt

ümbermõõt*rpm=kiirus

seega kui r=30cm ja rpm=200

3,14*30*2=~200cm
200*200=40000 cm/min = 400m/min = 24000m/h = 24km/h


____________________________
'84 Fiero 4.5T mängimiseks
Eesti esimene dragster, eiteamilleks?

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08.12.2006 at 19:31
1 edit. Last edited 08.12.2006 at 20:06 by Fog
BlueStang
 
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quote:
Fog: 4m/min = 240kmh



hm, kuskil longab -> 4 meetrit minutis on 240 meetrit tunnis :D

tegelikult siis antud algandmetega ca 24kmh :P





____________________________
http://www.mustangandfords.com/news/1305-top-10-svt-cobras/ no more
Dream car for family, who needs to go FAST!
new: Grand-dad of all offroad cars

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08.12.2006 at 19:40
1 edit. Last edited 08.12.2006 at 19:47 by BlueStang
twist
Abipalve füüsikas.
quote:
Fog:
200*200=40000 cm/min = 400m/min = 24000m/h = 24km/h




____________________________
Miki

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08.12.2006 at 19:47
Fog
 
Abipalve füüsikas.
kiiruga kribatud, jäi jah kahe silma vahele see.

____________________________
'84 Fiero 4.5T mängimiseks
Eesti esimene dragster, eiteamilleks?

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08.12.2006 at 20:05
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