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**1. Homework Statement**

A motorboat is 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=6km from point A. Find the flow velocity assuming the duty of the engine to be constant.

**2. Homework Equations**

Average Velocity, Average Speed, Displacement

**3. The Attempt at a Solution**

I drew a picture and labeled everything. I know the average velocity of the motorboat is 6km per hour.