przyspieszenie
s=\frac{at^2}{2}
a=\frac{2s}{t^2}=\frac{2*6m}{(6s)^2}=\frac{12m}{36s^2}=\frac{1}{3}m/s^2
\frac{\frac{1m}{3s^2}*t^2}{2}=50m |*2
\frac{1m}{3s^2}*t^2=100m
t^2=\frac{100m}{\frac{1m}{3s^2}}
t^2=300[\frac{m*s^2}{m}]
t=\sqrt{300[s^2]}
t\approx17,3s <–odpowiedź
s=\frac{at^2}{2}=\frac{\frac{1}{3}\frac{m}{s^2}*(17,3s)^2}{2}=\frac{1/3*299,29}{2}=99,8/2\approx50[m]