S1=11 S2=5 v1=6 v2=7.2 vcp=?
vcp=(S1+S2)/(S1/v1+S2/v2)=(6+5)/(6/7.2+5/36)=11.35 км/ч
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S1=11 S2=5 v1=6 v2=7.2 vcp=?
vcp=(S1+S2)/(S1/v1+S2/v2)=(6+5)/(6/7.2+5/36)=11.35 км/ч
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