Math/Physics

Given the following vectors, where Vector A is 6.3 meters and Vector B is 3.5 meters, determine the magnitude of the following vector sums: A+B, A-B, B-A

I tried to do magnitude such as A+B = square root (6.3)^2+(3.5)^2 = 7.2 then A-B = square root (6.3)^2-(3.5)^2 = 5.2 then got unreal answers on B-A when square root (3.5)^2-(6.3)^2 was put into the calc.

If vector component Vh is -8.50 units and Vv is 4.80 units, what is the magnitude and direction of Vector V?

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  1. just given arbitrary vectors of some magnitudes, there is no way to compute their sum or difference.

    Unless you know the x- and y-components, you are stuck.

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  2. No way to solve?

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