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vo = 7 m/s
g = 10 m/s2
szukane:
h = ?
mgh = mv^2/2 /:m
gh = v^2/2 I*2
2gh = v^2 /:2g
h = v^2/2g
h = (7m/s)^2/20m/s2
h = 2,45 m