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Liketothink

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## Homework Statement

An air-track glider attached to a spring oscillates with a period of 2.3 s. At t=0 s the glider is 3.09 cm left of the equilibrium position and moving to the right at 35.07 cm/s.

What is the phase constant? (in degrees)

## Homework Equations

v0x= -wAsin(ro), x=Acos(ro)

## The Attempt at a Solution

I divided v0x/x=wtan(ro). I solved for angular speed which was 2.73 rad/s. Now I solved for (ro) by taking tan inverse of (v/-wx). I received 73 as an answer and that's wrong. Would you please help me? Thank you.