A ship sets sail from rotterdam the netherlands heading due, Ask an Expert

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A ship sets sail from Rotterdam, The Netherlands, heading due north at 7 m/s relative to the water. The local ocean current is 1.50 m/s in a direction 40.0^O north of east.

Part (a) In what direction would the ship have to travel in order to have a velocity straight north relative to the Earth, assuming its speed relative to the water remains 7 m/s in degrees W of N?

Part (b) What would its speed be relative to the Earth in m/s?

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