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Physics

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A ferry is crossing a river. The ferry is headed
due north with a speed of 2.8 m/s relative to
the water and the river’s velocity is 4.9 m/s
to the east.
a) What is magnitude of the boat’s velocity
relative to Earth

  • Physics - ,

    Add the two vectors. The two vectors (ferry rel. to water and water rel. to land) are at right angles, so the magnitude is the hypotenuse.

    |V| = 5.64 m/s

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