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A person is running at his maximum speed...

A person is running at his maximum speed of 4 m/s to catch a train .When he is 6m from the door of the compartment the train starts to leave the station at a constant accceleration of 1 `m//s^(2)`.Find how long it takes him to catch up the train

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AAKASH SERIES-MOTION IN A STRAIGHT LINE -Numerical exercise(LEVEL-2)
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