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Lösning 3.1:1

FörberedandeFysik

(Skillnad mellan versioner)
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Rad 2: Rad 2:
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b) <math>OA:</math> <math>v^2=v_0^2+2a\cdot s \rightarrow (10(m/s)^2=0+2(4m/s^2)\cdot OA(m) \Rightarrow OA=12,5 m</math>
+
b) <math>OA:</math> <math>v^2=v_0^2+2a\cdot s \rightarrow (10(m/s)^2=0+2(4m/s^2)\cdot OA(m) \Rightarrow OA=12,5 m</math><br\>
<math>AB:</math> <math>s=v+\frac{1}{2}\cdot at^2 \Rightarrow AB=(10m/s)\cdot (6s)+\frac{1}{2}(3m/s^2)(6s)^2= 114 m </math><br\>
<math>AB:</math> <math>s=v+\frac{1}{2}\cdot at^2 \Rightarrow AB=(10m/s)\cdot (6s)+\frac{1}{2}(3m/s^2)(6s)^2= 114 m </math><br\>
<math>OB=OA+AB=126,5m</math>
<math>OB=OA+AB=126,5m</math>

Versionen från 22 december 2009 kl. 15.37

a) v=v0+at=10ms+3ms26s=28ms


b) OA: v2=v02+2as(10(ms)2=0+2(4ms2)OA(m)OA=125m
AB: s=v+21at2AB=(10ms)(6s)+21(3ms2)(6s)2=114m

OB=OA+AB=1265m