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A ferry is crossing a river. The ferry is
headed due north with a speed of 2.4 m/s
relative to the water and the river’s velocity
is 2.3 m/s to the east.
a) What is magnitude of the boat’s velocity
b) Find the direction in which the ferry is
moving (measured from due east, with counterclockwise positive).
Answer in units of

  • physics -

    For A you need to find the resultant. So since you know it moves 2.4 m/s north and 2.3 m/s east you can use the Pythagorean theorem to find it.

    For B i am not as sure about but it most likely is asking you to find the angle (based from east) where the boat is moving. So use inverse tan (opp/adj)

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