Na jaką powierzchnie człowiek o masie 40kg wywiera ciśnienie 8kPa
m = 40 kg
p = 8 kPa = 8000 Pa = 8000 N/m² ; kilo = 1000
g = 9,81 m/s² ≈ 10 m/s² ≈ 10 N/kg
S = ?
p = F / S
p * S = F
S = F / p
F = m *g
F = 40 kg * 10 N/kg = 400 N
S = 400 N /8000 N/m²
S = 0,05 m²
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m = 40 kg
p = 8 kPa = 8000 Pa = 8000 N/m² ; kilo = 1000
g = 9,81 m/s² ≈ 10 m/s² ≈ 10 N/kg
S = ?
p = F / S
p * S = F
S = F / p
F = m *g
F = 40 kg * 10 N/kg = 400 N
S = 400 N /8000 N/m²
S = 0,05 m²