Mechanics11/Seite5/Loesung2.4

d)$$x(t) = \frac {1}{2}*a*t*t$$

=> 1.Abschnitt:$$\frac{1}{2}*0,2\frac{m}{s*s}*60s*60s = 360m$$

=> 2.Abschnitt:$$\Delta v * \Delta t = v => 40s*12\frac{m}{s} = 480m$$

=> 3.Abschnitt:$$\frac{1}{2}*-0,4\frac{m}{s*s}*30s*30 = |-180m| = 180m$$

=> 360m+480m+180m = 1020m

--Max 18:37, 22 October 2007 (CEST)