February 24, 2017

Homework Help: Physics

Posted by Mary on Sunday, March 20, 2011 at 1:45pm.

Two girls are at the same point on one side of a river that is 40m wide with a current flowing at 1.00m/s. Simultaneously, the dive into the water in an attempt to swim to the other bank of the river directly across from where they started. Both swim at 2m/s relative to the water, but Girl A directs herself so that her net motion takes her straight across while Girl B keeps her body perpendivular to the current and consequently lands downstream. After landing she runs along the shore to where Girl A landed at a speed of 6 m/s. Which girl arrives first and by how much?

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