simple physics question

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simple physics question

01-27-2011, 05:06 PM

TheDon

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simple physics question

I'm stuck on a homework problem.

Here is what I have so far

${\rm{\vec A}} = ($
= -17 degrees counterclockwise from the positive x axis

$|{\rm{\vec A}}|$ = 30 meters

= 87 degrees counterclockwise from the positive x axis

$|{\rm{\vec B}}|$
= 20 meters

I'm having issues getting
${\rm \vec A}\,+\,{\rm \vec B}$
in terms of $\theta_{{\rm \vec A}\,+\,{\rm \vec B}}$ ______degrees counterclockwise from the positive x axis

and

$|{\rm \vec A}\,+\,{\rm \vec B}|$

the magnitude

"m" was for meters

Last edited by TheDon; 01-27-2011 at 11:31 PM.

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