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V = 10 cm³
F = 120N
Rozw.:
F = m × g
m = F/g = 120 N / 10 [N/kg] = 12 kg
ρ = m / V = 12 kg / 10 cm³ = 1,2 [kg/m³]
m=Fg/g
m=120/10
m=12kg
ρ=m/V
ρ=12/10
ρ=1.2 kg/cm³
m=masa=120N=12kg
g=10cm³
v=?
12kg=g×10cm³
g=12kg÷10cm³=1,2kg/cm³
Odp:Gęstość to 1,2kg/cm³