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diket = massa (kg) = 50
r = jari2 = 40 cm = 0,4 m
I = 50. 0,4 kuadrat2
= 50. 0,16
= 8
itu jawabanku, maaf kalau salah. semoga membantu
I = 2/5. 50. 0,4. 0,4
I = 1.6