two trains a and b, each of length 250 m are moving on a parallel track at 90 km/h and 72 km/h respectively in same direction.intially train a is 1 km behind train b .the time after which train a completely overtake train b is
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If two objects are moving in opposite directions towards each other at speeds and , then
Relative speed = Speed of first + Speed of second =
2. If the two objects move in the same direction with speeds u and v, then
Relative speed = difference of their speeds = u=v
Explanation:
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