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Ep=m*g*h
Ek=m*v^2/2
Dane:
v=7 m/s
g=10 m/s^2
m*v^2/2=m*g*h
m*v^2=2*g*h
v^2=2*g*h
h=v^2/2*g
h=7^2/2*10=49/20=2,45m