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I was hoping someone could help me with those two problems

I am not sure how to start 3. Here is what I have done with 4 so far...

[tex] \sum F= -kx-mg [/tex]

[tex] k=245 [/tex]

[tex] \sum F= -kx-mg [/tex]

[tex] \sum F= 34.3 [/tex]

F=ma

[tex] F=m x(double prime) [/tex] where [tex] x= Acos(\omega t + \theta) [/tex]

after that I am lost

Please help

thx

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# Simple Harmonic/Spring Question

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