Oblicz czas spadania kamienia o masie 10kg z urwiska skalnego na wysokości 150m.

[latex]dane:\v_{o} = 0\h = 150 m\g = 10frac{m}{s^{2}}\szukane:\t = ?\\Rozwiazanie:\\s = frac{at^{2}}{2}\\s = h\a = g\\h = frac{gt^{2}}{2} |cdotfrac{2}{g}\\t^{2} = frac{2h}{g} |sqrt{}\\t = sqrt{frac{2h}{g}}=sqrt{frac{2cdot150m}{10m/s^{2}}}=sqrt{30} s approx5,477 s\\t approx5,5 s[/latex]