Basic trig question for physics

  • Thread starter laminar
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  • #1
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I have to calculate the phase constant for a mass and spring system for simple harmonic motion. If I find that phi equals the arctan of some negative over another negative number, do I have to add pi to the answer for it to be in quadrant III?

I know this is more of a precalculus question but I don't know if the rules are different for physics.
 

Answers and Replies

  • #2
1,235
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yes, you have to add [tex] \pi [/tex].
 

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