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Two trains are moving with the same speed in opposites direction and wind is blowing with a speed u ms^-1 along the track such that the relative velocities of the trains with respect to wind are in the ratio 1:2.then the speed of each train is
Since the two trains are moving in opposite direction with same speed the relative velocity of the two trains are,Vr =v+v = 2v m/s
speed of the wind = U m/s
Ratio of the speeds of trains and wind, Vr :U= 2v:U=1:2
                                         2v/U=1/2
                                          2v=(1/2)U
                                            v=(1/4)U m/s


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