Posted by **Anonymous** on Thursday, December 13, 2012 at 8:08pm.

A hunter wishes to cross a river that is 2.5 km wide and that flows with a speed of 6.0 km/h. The hunter uses a small powerboat that moves at a maximum speed of 9.8 km/h with respect to the water. What is the minimum time necessary for crossing?

- physics -
**k**, Saturday, September 27, 2014 at 4:44pm
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