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January 29, 2015

January 29, 2015

Posted by **Tarkan** on Monday, March 12, 2012 at 10:45pm.

- Vectors -
**Steve**, Tuesday, March 13, 2012 at 4:42amYou don't really even need vectors for this. It takes 2/10 hours to cross the river. In that time, the boat drifts downstream 2/10*4 = 4/5 km.

Now, if you want to find the heading needed to get straight across the river, then you need some vectors.

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