Please help with this problem. A train moves from rest with const accel. a in a straight line. A man at distance b behind the train chases it with const. speed V. Show he can catch it if V^2 >2ab, and find when he does so.(adsbygoogle = window.adsbygoogle || []).push({});

I have found formulas for distance travelled for each and equated these but cannot understand where the Vsquared comes from.

Thanks to anyone who can help. Jess x

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# Homework Help: Mechanics train problems

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