A 2.00 kg mass attached to a spring is driven by an external force F = (2.00 N) cos (3t). Assume that the force constant of the spring is 25.0 N/m.(adsbygoogle = window.adsbygoogle || []).push({});

(a) Determine the period of the motion

(b) Determine the amplitude of the motion

FOr part A, i tried the T=2(pi)/w formula, and i got the wrong answer...what am i doing wrong?

For part B, the book says to use this formula:

A= Fo/m / square root of [ (w^2-wo^2)+(bw/m)^2 ]

the Bw/m^2 is irrelevent since B=0....

But what is Fo? Is this how u are suppose to solve for the amplitute for this problem? thanks

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# Homework Help: Forced oscillations

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