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Math Help - Vectors

  1. #1
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    Vectors

    Not sure what im doing wrong here,



    1.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.

    i solved for 1cost(10), 1sin(10) but its saying my answer is incorrect..

    2.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.

    3.Find the components of the vector with length = 1.00 and angle 25.0 as shown.
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  2. #2
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    Hello Juggalomike
    Quote Originally Posted by Juggalomike View Post
    Not sure what im doing wrong here,



    1.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.

    i solved for 1cost(10), 1sin(10) but its saying my answer is incorrect..
    The components of \vec{A} are
    a\cos\alpha and a\sin\alpha
    along Ox and Oy respectively. So that's \cos10^o=0.9848 and \sin10^o = 0.1736, correct to 4 d.p.

    If the answer you've been given is different from this, then either the answer or the question is wrong!

    2.Find the components of the vector with length = 1.00 and angle =10.0 with respect to the x axis as shown.
    3.Find the components of the vector with length = 1.00 and angle 25.0 as shown.
    In a similar way, the components of \vec{B} along Ox and Oy are:
    b\cos\beta and b\sin\beta, respectively
    and the components of \vec{C} are:
    -c\sin\phi and c\cos\phi, respectively
    Grandad
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  3. #3
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    That is the same answer i got, gonna ask the teacher about it because i believe there may be an error in the system. Thanks
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