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速度=路程÷時間 即V=L/T 甲、乙的速度、路程、時間為V1、V2、L1、L2、T1、T2 那麼V1=L1/T1;V2=L2/T2 所以V1/V2=(L1/T1)/(L2/T2) =(L1/L2)/(T1/T2) L1/L2;T1/T2為已知,可求得V1/V2
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