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a=s:t
a=100km/h :10s=10 m/s²
Δv=100km/h=100*1000/3600≈27,8m/s
t=10s
a=Δv/t
a≈27,8/10
a≈2,78 m/s²
a≈2,8 m/s²
2.s=1km=1000m
t=30s
v=s/t
v=1000/30
v≈33,3m/s
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