Mechanics11/Seite5/Loesung2.4

From WikiEducator
Jump to: navigation, search

d)[math]x(t) = \frac {1}{2}*a*t*t[/math]

=> 1.Abschnitt:[math]\frac{1}{2}*0,2\frac{m}{s*s}*60s*60s = 360m[/math]

=> 2.Abschnitt:[math]\Delta v * \Delta t = v =\gt 40s*12\frac{m}{s} = 480m[/math]

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

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

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