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時針運動的週期為12h,分針的週期為1h,週期比為12:1.根據ω=2πT,知時針和分針的角速度之比為1:12.時針與分針從第一次重合到第二次重合有ω時t+2π=ω分t.,則t=2πω分−ω時=2π1112ω分=2π11122πT分…
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