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Balok (a)
A = p x t
A = 12 cm x 3 cm
A = 36 cm²
A = 36 x 10⁻⁴ m²
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P = F/A
p = 30 N / 36 x 10⁻⁴ m²
p = 0,83 x 10⁴ N/m²
p = 8,33 x 10³ N/m²
Balok (b)
A = t x l
A = 3 cm x 8 cm
A = 24 cm²
A = 24 x 10⁻⁴ m²
p = F/A
p = 30 N / 24 x 10⁻⁴ m²
p = 1,25 x 10⁴ N/m²
p = 12,5 x 10³ N/m²
Balok (c)
A = p x l
A = 12 cm x 8 cm
A = 96 cm²
A = 96 x 10⁻⁴ m²
p = F / A
p = 30 N / 96 x 10⁻⁴ m²
p = 0,3125 x 10⁴ N/m²
p = 3,1 x 10³ N/m²
