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r = 50 cm = 0,5 m
I = ...........?
Penyelesaian :
Dianggap silinder pejal
I = ½mr²
= ½ • 100 • 0,5²
= 50 • 0,25
= 12,5 kgm²
Jadi, momen inersianya adalah 12,5 kgm²