uzupełnij tabelkę :
p = 2 kPa
F = ?
S = 10 m 2
sposobem F = p * S
i zamienić 2 kPa na Pa -- 1 kPa ma 1000 Pa
2 . p = 500 Pa
F = 20 kN
S = ?
sposobem S = F/p
i 20 kn zamienić na N - 1 kN = 1000 N
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1. p= 2 kPa=2 000 Pa
s=10m 2
F=2 000 Pa * 10m 2=20 000 Pa * m 2=20 000N=20 kN
2. p= 500 Pa
F=20 kN=20 000N
S= 20 000N / 500 Pa=40 N / Pa= 40 m 2*Pa / Pa=40 m 2