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[" Two trains "A" and "B" ,each of lengt...

[" Two trains "A" and "B" ,each of length "100m" ,are running "],[" on parallel tracks.One overtakes the other in "20s],[" and one crosses the other in "10s" .Calculate the "],[" velocities of each train.(Ans."15ms^(-1),5ms^(-1)" ) "]

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