Ruch jednostajnie przyspieszony    s=12km 5km/h a=2,5m/s t=?   Z góry dziękuje :) 

√2s/2 =t √2×12/2,=9,6s 

s=12km=1200m v=5km/h a=2,5m/s2 t=?   [latex]s=frac{a*t^{2}}{2}[/latex] [latex]1200m=frac{2,5frac{m}{s^{2}}*t^{2}}{2} /*2[/latex] [latex]2400m=2,5frac{m}{s^{2}}*t^{2}} /:2,5frac{m}{s^{2}}[/latex] [latex]frac{2400m}{2,5frac{m}{s^{2}}}=t^{2} [/latex] [latex]960s^{2}=t^{2} /sqrt{}[/latex] [latex]sqrt{960s^{2}}=t [/latex] [latex]8sqrt{15}s=t [/latex] [latex]31sapprox t [/latex]