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    vector addition -velocities

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    A plane is headed eastward at a speed of 156 m/s. A 20 m/s wind is blowing southward at the same time as the plane is flying. The velocity of the plane relative to the ground is:

    Answer Choices:
    157 m/s at an angle of 7.31 degrees south of east
    157 m/s at an angle of 7.31 degrees east of south
    155 m/s at an angle of 7.36 degrees south of east
    155 m/s at an angle of 7.36 degrees east of south

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    https://brainmass.com/physics/relative-velocity/vector-addition-velocities-110327

    Solution Preview

    Please see the attached file.
    The problem is an illustration of vector addition

    Answer
    The problem is an illustration of vector addition

    Velocity of the plane vplane =156 m/s (it is a vector along east)
    Velocity of the wind vwind = 20 ...

    Solution Summary

    By the principle of vector addition the particle moving in a plane is illustrated

    $2.49

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