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Thread: Find the magnitude and bearing of the vector v=<5,-7> to the nearest whole vaule

  1. #1
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    Find the magnitude and bearing of the vector v=<5,-7> to the nearest whole vaule

    How do i find the answer?
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    Re: Find the magnitude and bearing of the vector v=<5,-7> to the nearest whole vaule

    Imagine setting that vector in an xy-coordinates system- the tail of the vector is at (0, 0) and its tip is at (5, -7). Drawing a line from the tip perpendicular to the x-axis gives a right triangle where one leg has length 5 and the other leg with (signed) length -7. What is the length of the hypotenuse of that right triangle? What angle does the hypotenuse make with the x-axis?
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    Re: Find the magnitude and bearing of the vector v=<5,-7> to the nearest whole vaule

    Quote Originally Posted by Gummg View Post
    How do i find the answer?
    Sorry but that question make little sense to me,
    The magnitude is $\sqrt{(5)^2+(-7)^2}$. I have no idea what bearing means in this context.
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    Re: Find the magnitude and bearing of the vector v=<5,-7> to the nearest whole vaule

    I got 9 for the magnitude but how do i get the angle?
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    Re: Find the magnitude and bearing of the vector v=<5,-7> to the nearest whole vaule

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