Two trains A and B is …
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Gaurav Seth 5 years, 1 month ago
Let u & v be the velocity of the two trains named A & B.
While overtaking the relative velocity of train A with respect to B = u - v.
While crossing, the relative velocity of train A with respect to B = u + v.
Total distance to be travelled by Train A while crossing = 100 + 100 = 200.
So,
20 = 200 ÷ u-v
=> u - v = 10....1)
Also,
10 = 200 ÷ u + v
=> u + v = 20.......2)
On solving the equation 1 & 2, we get;
u = 15 M/S of the train A / First Train.
v= 5 M/S of the train B / Second Train.
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