Przyspieszenie pociągu wynosi 0,5m/s.(kwadratową) Ile upłynie zanim pociąg rozpędzi się od prędkości 10km/h do 46km/h
wik8947201
![[tex]\\a=\frac{\Delta \ v}{\Delta t} \\. \\\Delta v=46km/h-10km/h=36km/h=10 \ m/s \\ \\\Delta t=\frac{\Delta v}{a} \\. \\t=10:\frac12=10*2=20 \ s. ](https://tex.z-dn.net/?f=%5Btex%5D%5C%5Ca%3D%5Cfrac%7B%5CDelta+%5C+v%7D%7B%5CDelta+t%7D+%5C%5C.+%5C%5C%5CDelta+v%3D46km%2Fh-10km%2Fh%3D36km%2Fh%3D10+%5C+m%2Fs+%5C%5C+%5C%5C%5CDelta+t%3D%5Cfrac%7B%5CDelta+v%7D%7Ba%7D+%5C%5C.+%5C%5Ct%3D10%3A%5Cfrac12%3D10%2A2%3D20+%5C+s.%0A "[tex]\\a=\frac{\Delta \ v}{\Delta t} \\. \\\Delta v=46km/h-10km/h=36km/h=10 \ m/s \\ \\\Delta t=\frac{\Delta v}{a} \\. \\t=10:\frac12=10*2=20 \ s. ")
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