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Two particles are projected from a point at the same instant with velocities whose horizontal components and vertical components and vertical components are `(u_(1), v_(1)) and (u_(2), v_(2))` respectively. The time interval between their passing through the other common point of their path (other than origin) in

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`(2(v_(1)u_(2) - v_(2)u_(1))/(g(u_(1) + u_(2))))`
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AAKASH SERIES-MOTION IN A PLANE-NUMERICAL EXERCISE (LEVEL -2)
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