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Tekanan = gaya berat / luas alas
P = m * g / A
P = 300 * 10 / (1 * 0,5) = 3000 / 0,5 = 6.000 N/m²
Jawaban C
nomor 9
kelajuan = jarak / waktu
v = 250 cm / 2,5 sekon = 100 cm/s
Jawaban A