s₁ = 5km v₁ = 20km/h t = s/v t₁ = 5km/20km/h = 0,25h s₂ = 20km v₂ = 16km/h t₂ = 20km//16km/h = 1,25h s = 20km + 5km = 25km t = 0,25h + 1,25h = 1,5h v = s/t v = 25km/1,5h = 16,67km/h ---------------------------------------------------------------------------------------------------------- Feci, quod potui, faciant meliora potentes Pozdrawiam :)
[latex]V_{1}=20 [m/s]\ V_{2}=16 [m/s]\ s_{1}=5000 [m]\ s_{2}=20000 [m]\ \ t=s/V\ t_{1}=5000/20=250 [s]\ t_{2}=20000/16=1250 [s]\ \ V_{średnie}=s_{całkowite} / t_{całkowity}\ \ t_{całkowity} = 250 [s] + 1250 [s] = 1500 [s]\ s_{całkowite} = 5000 [m] + 20000 [m] = 25000 [m]\ \ V_{średnie} = 25 000 [m] / 1500 [s] = ~16,7 [w przybliżeniu od 16,6666(6)][/latex]
