Dane:
m = 60 kg
g = 10 m/s²
S₁ = 10 m²
p = ? [Pa]
p = F/S
F = mg
[F] = [kg * m/s² = N]
F = 60 * 10 N
F = 600 N
S = 2S₁
S = 2*10 m²
S = 20 m²
p = (600 N)/(20 m²)
p = 30 N/m²
p = 30 Pa
Odp: Łyżwiarz wywiera na lód ciśnienie 30 Pa.
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Dane:
m = 60 kg
g = 10 m/s²
S₁ = 10 m²
p = ? [Pa]
p = F/S
F = mg
[F] = [kg * m/s² = N]
F = 60 * 10 N
F = 600 N
S = 2S₁
S = 2*10 m²
S = 20 m²
p = (600 N)/(20 m²)
p = 30 N/m²
p = 30 Pa
Odp: Łyżwiarz wywiera na lód ciśnienie 30 Pa.