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A police inspector in a jeepis chasing a...

A police inspector in a jeepis chasing a pickpocket on a straightroad. The jeep is going at its maximum speed v (assumed uniform). The pickpocket rides on the motorcycle of a waiting friend when the jeepis at a distance of a waiting friend when the jeep is at a distance d away, and the motorcycle starts with a constant acceleration a. Show that the pickpocket will be caught it `vgesqrt(2ad)`.

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