na jaka wysokość doleci kula wystrzelona pionowo do góry o szybkości 100 matrów na sekundę?.
Ep=Ek
mgh=1/2mv² /*2
2mgh=mv² /:m
2hg=v² /:2g
h=v²/2g
h=(100m/s)²/2*10m/s²
h=500m=0,5km
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Ep=Ek
mgh=1/2mv² /*2
2mgh=mv² /:m
2hg=v² /:2g
h=v²/2g
h=(100m/s)²/2*10m/s²
h=500m=0,5km