Mechanics11/Seite10/Loesung3.17

Angabe

$h = 15m \frac{}{}$

$h = \frac{v_2}{2g}$

$v_0 = \sqrt[]{30 * 9.81}\frac{m}{s}$

$v_0 = 17,16 \frac{m}{s}$

$t_s = \frac{v_0}{g}$

$t_s = \frac{17,6}{9,81}s$

$t_s = 1,75 s \frac{}{}$

$t_s = t_f \frac{}{}$

$t_s = 1,75 s \frac{}{}$

--FatF 12:25, 11 January 2008 (CET)

geg: h = 15m

ges: t_s; v₀; t_f

h = v₂/2g

v₀ = $\sqrt[]{2g * h}$

v₀ = $\sqrt[] {2*9,81 m/s^2*15m}$

v₀ = 17,1 m/s