F1 = 400kg*10m/s² = 4000N
S1 = 80cm² = 0,008m²
F2 = 150N
S2 = x
P = F/S
4000/0,008 = 150/x
500000 = 150/x |*x
500000x = 150 |:500000
x = 0,0003m²
x = 3cm²
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F1 = 400kg*10m/s² = 4000N
S1 = 80cm² = 0,008m²
F2 = 150N
S2 = x
P = F/S
4000/0,008 = 150/x
500000 = 150/x |*x
500000x = 150 |:500000
x = 0,0003m²
x = 3cm²