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a) a=v/t
a=2m/s / 4s
a= 0,5m/s²
s= a x t² / 2
s= 0,5s x 16 s / 2
s = 4m
b) a=v/t
a=3m/s / 4s
a= 0,75m/s²
s= a x t² / 2
s= 0,75s x 16 s / 2
s = 6m
c) a=v/t
a=5m/s / 4s
a= 1,25m/s²
s= a x t² / 2
s= 1,25s x 16 s / 2
s = 10m
Zadanie 2
s=a x t² /2
2s=a x t²
a=2s/ t²
a=800m/4s
a=200m/s²
v=a x t
v=200m/s² x 4s
v=800m/s