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a=2s/t2
a=20m/25s2
a=0,8m/s2
t = 5s
s = ½at² |* 2
2s = at² |:t²
a = 2s : t²
a = 20m : 25s²
a = 0,8 m/s²
s=1/2*a*t2 i przekształcimy:
a=2s/t2
a= 20m/25s2
a=0,8 m/s2
Odp. przyspieszenie wynosi 0,8m/s2