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April 19, 2014

Homework Help: physics111

Posted by yonela on Tuesday, April 2, 2013 at 9:33am.

a river flows due south with a speed of 2.0m/s. a man steers a motorboat across the river;his velosity is 4.2m/s due east.the river is 800m wide.
(A) what is his velocity(magnitude and direction)relative to the earth?
(B)how much time is required to cross the river?

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