Respostas

2013-04-01T20:48:34-03:00

delta tbala+delta tsom=6s

vb=x/delta tbala

delta tbala=x/680

delta tsom=x/340

 

x/680+x/340=6/1

 

340+680/680.340=6/x 

1020x=6.340

1020x=2040

x=2m 

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