The displacement, x= Acos([tex]\varpi[/tex]t+[tex]\phi[/tex]), repeats for every increase in 2pi. Why can't I make the above equal to Acos([tex]\varpi[/tex]t+[tex]\phi[/tex] + 2pi), and divide by cos. This gives [tex]\phi[/tex]]=0. This is clearly wrong. Why?(adsbygoogle = window.adsbygoogle || []).push({});

And how does angular frequency apply to a mass on a spring anyways, it doesnt move in a circle.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Simple harmonic motion: why cant you divide by cos?

**Physics Forums | Science Articles, Homework Help, Discussion**