gc textbook chapter 11 Vibrations and Waves (id: ed2334f2e)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理

[填空题]
A 2.00-kg pumpkin oscillates from a verticallyuc dha3 8f:dt5 hanging light spring once ec +03:smtgl4i 2i6j9 qg+uz6 ejz uijjvery 0.65 s. u3jme i4i62 u jg6qigj 9+ljt+z s:cz0
(a) Write down the equation giving the pumpkin’s position y (+ upward) as a function of time t, assuming it started by being compressed 18 cm from the equilibrium position (where ), and released. y = (   m)cos($\frac{2\pi t}{0.65s}$)
(b) How long will it take to get to the equilibrium position for the first time?    s
(c) What will be the pumpkin’s maximum speed?    m/s
(d) What will be its maximum acceleration, and where will that first be attained?   $m/s^2 $

参考答案:
空格1: 0.18±2%  空格2: 1.016±2%  空格3: 1.7±2%  空格4: 17±2% 


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