Kinematics/Questions

Below are some questions on kinematics. You can also contribute by adding your set of questions.
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1. A motorboat going downstream overcame a raft at a point A; T = 60 min later it turned back and after some time passed the raft at a distance l = 6.0 km from the point A. Find the flow velocity assuming thr duty of the engine to be constant.
Category:Exercise