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A boat crossing a wide river moves with a speed of 17.0 km/h relative to the...

A boat crossing a wide river moves with a speed of 17.0 km/h relative to the water. The water in the river has a steady speed of 6.00 km/h due north relative to the earth.

1) What is the angle made between the velocity of the boat relative to the observer and the west direction?

2) At what angle against the steam must the boat be headed with respect to the west direction in order for it to proceed west as seen by the observer on the shore?

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