Odpowiedzi

2010-01-30T11:35:40+01:00
H = 3 m
W = 6 J
g = 10 m/s^2 = 10 N/kg
m = ?
W = F*h ; ale F = m*g
W = m*g*h
m = W/ g*h
m = 6 J/10 N/kg*3m
m = 0,2 kg

jednostki: [J] = [N*m]
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