OpenStudy (anonymous):

Eve can swim 3 m/s in still water. The river current is 1 m/s. The river is 200 m wide. Eve wishes to swim across the river, 20 m upstream, to meet Adam underneath the apple tree. a) In what direction should Eve swim (relative to the riverbank)? b) What will be her resultant speed? c) How long will Adam have to wait under the apple tree?

5 years ago
OpenStudy (anonymous):

ooh physics. i think you have to use vector formulas such as \[V _{x}=v \cos \theta\] and \[V _{y}=v \sin \theta\]

5 years ago
OpenStudy (anonymous):

and trig functions

5 years ago
OpenStudy (anonymous):

http://www.answer5.com/education_reference/science_mathematics/?id=b1182321

5 years ago
OpenStudy (anonymous):

I still don't get it. /:

5 years ago
OpenStudy (anonymous):

Oh yes. This again. I will leave you to the more than capable people here =P

5 years ago