[FISIKA] mau nanya soal gerak/osilasi harmonik sederhana

[Mikael Yuan]

Ini soal fisika di univ saya, udah saya post di website luar negri tp
ga ad yg bs jawab. mohon bantuannya
maaf kalo blom saya terjemahin
trims

I have a physic problems for university
please help me if you could solve this problem.
I really appreciate your help
thank you

A weight which mass 1 kg, tied to a spring with spring constant (k) =
100 pi^2 N/m.
The spring had a simple harmonic oscillation (in cosinus).
At t(time)= 0 s, the displacement (x) is 0.032 m and the velocity is
0.24 pi m/s toward negative x axis.

Find:
a) Maximum displacement(Amplitude) and phase constant
b)The displacement function (as a function of time x(t))
c)The acceleration when the displacement is -0.016 m

Thank you very much


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