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Vk=8m/s
t1=6s a=Vk/t1 [a]=m/s/s=m/s*1/s=m/s²
t2=5s
t3=4s a=8/6
a= 1,33m/s²
s1=1/2at2²
s1=1/2*1,33*5²
s1=16,63m [s]=m/s²*s²=m
s2= 1/2at3²
s2=1/2*1.33*4²
s2= 10,64
droga przebyta w piatej sekundzie ruchu :
s=s1-s2
s=16,63-10,64=5,99m
Odp. samochod w piatej sekundzie ruchu przebyl droge 5,99m