Basic trig question for physics

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SUMMARY

The discussion centers on calculating the phase constant (φ) for a mass-spring system in simple harmonic motion. When φ is derived as the arctangent of a negative value divided by another negative value, it is necessary to add π to the result to ensure the angle is correctly placed in quadrant III. This clarification emphasizes the importance of understanding the quadrant placement in trigonometric calculations within the context of physics.

PREREQUISITES
  • Understanding of simple harmonic motion principles
  • Knowledge of trigonometric functions, specifically arctangent
  • Familiarity with quadrant placement in trigonometry
  • Basic physics concepts related to mass-spring systems
NEXT STEPS
  • Study the derivation of phase constants in simple harmonic motion
  • Learn about the application of trigonometric functions in physics problems
  • Explore the significance of quadrant placement in trigonometric calculations
  • Investigate the relationship between phase constants and energy in oscillatory systems
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and oscillations, as well as educators teaching concepts related to simple harmonic motion and trigonometry.

laminar
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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.
 
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yes, you have to add [tex]\pi[/tex].
 

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