本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 IB物理学
[问答题]
A vertical spring with spring st1x hls * 3pptq6bg:q1hiffness constant 305b(qp v)r+vjcnjo+9. n N/m vibrates with an amplitude of 28.0 cm when 0.260 kg hangs from it. The mass passes through the equilibrium point (x=0) with positivjvnp(+b9qr ).jvoc n +e velocity at
(a) What equation describes this motion as a function of time?
(b) At what times will the spring have its maximum and minimum extensions?
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