Mechanics11/Seite5/Loesung2.7
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< Mechanics11 | Seite5
2.7 a:
[math]\Delta t [/math] = 3,87 s
[math]\Delta v [/math]= 100 km/h = 27,78[math]\frac{m}{s}[/math]
a =[math]\frac{27,78 m/s}{3,87s}[/math]= 7,18 [math]\frac{m}{s2}[/math]
2.7 b:
x(t) = [math]\frac{1}{2}[/math] * a * t2
= [math]\frac{1}{2}[/math] * 7,18[math]\frac{m}{s2}[/math] * 3,87s2 = 53,77 m = 54 m
--Marc 20:31, 6 November 2007 (CET)