While spending a day at a river you see a person upstream that is caught in the river and is
being swept downstream (therefore coming toward you). You have a boat that can go 9m/s.
The river is flowing at 2.5m/s. When you start off in your boat the person is 150m from the
shore and 930m upstream. At what angle, relative to the shore do you have to aim your boat if
you are going to “drive” straight to the person to save them?
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