[tex]dane:\\v_{o} = 0\\a = 5\frac{m}{s^{2}}\\v = 100\frac{km}{h} = 100\cdt\frac{1000 \ m}{3600 \ s} = 27,(7)\frac{m}{s} = 27,78\frac{m}{s}\\szukane:\\t = ?\\s = ?[/tex]
Rozwiązanie
Czas t:
[tex]dla \ \ v_{o} = 0\\\\v = a\cdot t \ \ /:a\\\\t = \frac{v}{a}\\\\t = \frac{27,78\frac{m}{s}}{5\frac{m}{s^{2}}}\\\\t = 5,6 \ s[/tex]
Droga s:
[tex]s = \frac{1}{2}at^{2}\\\\s = \frac{1}{2}\cdot5\frac{m}{s^{2}}\cdot(5,6 \ s)^{2}\\\\s = 78,4 \ m[/tex]
