# physics

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a boat can sail at 27 m.s in still water. the boat must cross a river that flows at 9 m.s towards the east . if the boat crosses the river by going up stream at an angle of 23 south, what will the size and angle of the resulting velocity be?

• physics -

Are you trying to go straight across the river by aiming upstream? What is meant by an angle of 23 south? South of what?

• physics -

23 degrees south

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