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August 3, 2015

Homework Help: Physics

Posted by Anonymous on Monday, March 3, 2008 at 4:53am.

A boat is at a point 120km West and 60km South of its destination. It sails in water which has a current of 20km/h North. In order to arrive at the destination, the captain decides to head the boat due East at 50km/h until he reaches a point due South of the destination. He would then let the boat drift towards the destination. For what length of time should each portion of the trip last?

I got 2.4h for the captain heading east. I need to know how long the drifting will last. I don't know how to get that.

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