Categories > Motion in A Straight Line > An express train is moving with a velocity $v_1$. Its driver finds another train is moving on the same track in the same direction with velocity $v_2$. To escape collision, driver applies a retardation a on the train. the minimum time of escaping collision will be

Motion in A Straight Line

Question: An express train is moving with a velocity $v_1$. Its driver finds another train is moving on the same track in the same direction with velocity $v_2$. To escape collision, driver applies a retardation a on the train. the minimum time of escaping collision will be


1) \[t = \frac{{{v_1} - {v_2}}}{a}\]
2) \[{t_1} = \frac{{v_1^2 - v_2^2}}{2}\]
3) None
4) Both
Solution: Explanation: Explanation

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