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dane;
s=2,5m/s²
t=45s
v0=10m/s
szukane;
vk=?
wzór;
v0=vk-at
10m/s=vk-25m/s
vk=35m/s=126km/h
odp; prędkośc końcowa ma wartośc 35m/s czyli 126km/h;)