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anonymous

  • one year ago

How to subtract and add vectors? For the vectors shown in Fig. 3-32 (A = 64.0 and θ = 56.0°), determine the following. Fig. 3-32 = http://imgur.com/pdGd3Pt (a) C - A - B Find the magnitude and direction (b) 2A - 3B + 2C Find the magnitude and direction Thanks!

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  1. Abhisar
    • one year ago
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    |dw:1441361066954:dw|

  2. Abhisar
    • one year ago
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    You can use the following formulas: \(\sf|\vec{A}+\vec{B}|=\sqrt{A^2+B^2+2AB.Cos(\theta)}\\ |\vec{A}-\vec{B}|=\sqrt{A^2+B^2-2AB.Cos(\theta)}\) Note: \(\sf \theta\) is the angle between two vectors when tails of both the vectors are joined together. See the illustration below. |dw:1441361647783:dw|

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