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ρ = M/V
I = ∫x² dm
= ∫x² A ρ dx
= ∫x² A (M/V) dx
= ∫x² L² (M/L³) dx
= ∫x² (M/L) dx
= M/L ∫ x² dx
= M/L • ⅓x³ |
= ⅓ M/L [L³ - 0]
= ⅓ M/L (L³)
I = ⅓ M L² ⇔ Tidak Terbukti