Posted by **COFFEE** on Wednesday, April 4, 2007 at 4:38am.

..im really stuck on this. can someone please explain?

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Figure A [[which i tried to recreate below]] is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.1 rad/s.

[a].....x(cm).......

........5-|-........

.........-|-........

=======.3-|-........

.......========.....

........1-|-...=====

----------|---------t

.......-1-|-........

.........-|-........

.......-3-|-........

.........-|-........

.......-5-|-........

Figure B is a partial graph of the corresponding velocity function v(t).

[b]....v(cm/s)......

........5-|-........

.........-|-........

........3-|-........

.........-|-........

........1-|-........

----------|---------t

.......-1-|-........

.........-|-........

=======-3-|-........

.......========.....

.......-5-|-...=====

What is the phase constant of the SHM if the position function x(t) is given the form x = xmcos(ωt + φ)?

φ = ____ rad/s

..... the example in the book had an angular frequency of 1.2 rad/s. & the answer it gave was 1.03 rad/s.

sorry that the 'graphs' look distorted on this page that your viewing... i recommend copying the graph and pasting it in the ANSWER box below on this page and it should look right :)

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