A river flows due east at constant velocity 3 ms a boat, Ask an Expert

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A river flows due East at constant velocity 3 m/s. A boat crosses the 300 m wide river by maintaining a constant velocity of 10 m/s relative to the water.

(a) If the boat heads due North, how far downstream has it moved by the time it reaches the far shore?

(b) In which direction should the boat be headed if it is to reach the far shore without being dragged downstream?

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