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每分鐘3000轉,就是每秒鐘50轉,也就是每秒鐘100π,所以角速度就是ω=100π弧度/秒=314弧度/秒.週期:由每秒50轉可得,每轉用時1/50秒,也就是T=0.02秒. 週期公式T=2π/ω,角速度公式為ω=2πf=2πn(要化為每秒多少轉哦)
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