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Verified answer
ROTASIkecepatan sudut
v = ω R
→ ω = v / R
momen inersia
I = ½ m R²
Energi kinetik
Ek = Ek translasi + Ek rotasi
Ek = ½ m v² + ½ I ω²
Ek = ½ m v² + ½ (½ m R²) (v / R)²
Ek = ½ m v² + ¼ m v²
Ek = ¾ m v² ← jwb