Respostas

2014-03-25T10:29:25-03:00
Resposta

Epg = 32J
m = 800g = 0,8kg
g = 10m/s²

Epg = m.g.h
32 = 0,8.10.h
32 = 8h
h = 32/8
h = 4 metros
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