(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Vector [tex]\vec{A}[/tex] has magnitude 3.6 units; vector[tex]\vec{B}[/tex] has magnitude 5.9 units. The angle between A and B is 45°. What is the magnitude of [tex]\vec{A}[/tex] + [tex]\vec{B}[/tex]?

2. Relevant equations

[tex]\Delta[/tex]V= [tex]\sqrt{V^2x +V^2y}[/tex]

"SohCahToa"

3. The attempt at a solution

I am really struggling with this for some reason. I know its just a SAS triangle.

Sin(45)=x/5.9 = opposite angle (y component, no?) =4.1719.

I tried using sqrt(4.1719^2 + 3.6^2)

where 3.6 is the x component and 4.1719 is the y component

=5.510

But, this is not correct. Basically all of my webassign problems are similar to this type, more or less complicated. Could you please point me in the right direction?

Thank you so very much for your time!

Edit: I searched but was unable to find a thread that helped. If you know of one, that would be appreciated also

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# Homework Help: Help me with vectors and magnitudes, please?

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