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? asked in Science & MathematicsPhysics · 10 years ago

need physics help bad?

Vector is 7.00 units in length and points along the positive x axis. Vector is 3.00 units in length and points along the negative y axis. Use graphical methods to find the magnitude and direction of the vectors below

a. vector A + vector B

magnitude:

direction: (relative to the +x axis)

b. vector A - vector B

magnitude:

direction: (relative to the +x axis)

1 Answer

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  • Steve
    Lv 7
    10 years ago
    Favorite Answer

    a

    M = √[7²+3²] = 7.62 u

    Θ = arctan[-3/7] = -23.2°

    b

    M = √[7²+3²] = 7.62 u

    Θ = arctan[3/7] = +23.2°

    Source(s): Vectors 101
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