Monday
July 6, 2015

Homework Help: Physics

Posted by Chloe on Thursday, October 15, 2009 at 11:12am.

The water in a river flows uniformly at a constant speed of 2.53 m/s between parallel banks 69.8 m apart. You are to deliver a package directly across the river, but you can swim only at 1.74 m/s.

(a) If you choose to minimize the time you spend in the water, in what direction should you head? ______ from the direction of the stream

(b) How far downstream will you be carried? ______m

(c) If you choose to minimize the distance downstream that the river carries you, in what direction should you head? ______ from the direction of the stream

(d) How far downstream will you be carried? ______m

Any help as to how to start this or which formula to apply would be great. I'm really confused with motion in two dimensions.

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