# physics

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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).

• 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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