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Ciśnienie jakie wywierasz siedząc na krzesle wynosi 4,498 kPa
m = 52 kg
a = 34 cm = 0,34 m
g = 10 N/kg
szukane:
p = ?
p = F/S
ale:
F = m * g = 52kg * 10N/kg = 520 N
S = a² = 0,34m * 0,34m = 0,1156 m²
p = 520N / 0,1156m² = 4 498,2698 Pa
p ≈ 4 498,3 Pa ≈ 4,498 kPa