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April 18, 2014

Homework Help: physics

Posted by AK on Friday, November 27, 2009 at 6:11pm.

A 27.0 kg block at rest on a horizontal frictionless air track is connected to the wall via a spring. The equilibrium position of the mass is defined to be at x=0. Somebody pushes the mass to the position x= 0.350 m, then lets go. The mass undergoes simple harmonic motion with a period of 4.30 s. What is the position of the mass 3.526 s after the mass is released?

I tried using the equation x(t)=x*cos(ωt+φ) however I keep getting the answer to be 0.3486 m and according to the homework that is incorrect. Any guidance would be appreciated.

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