Home I Student: walli Simple Harmonic Motion Begin Date: 10/17/2016 12:00:00 AM-

Question

Home I Student: walli Simple Harmonic Motion Begin Date: 10/17/2016 12:00:00 AM--Due Date: 11/7/2017 8:00:00 AM End Date: 1 2017 8:00:00 AM (10%) Problem 5: A mass m: 2.8 kg is at the end of a horizontal spring of spring constant k = 490 Nm on a fraction!ess horizontal surface. The block is pulled, stretching the spring a distance A 7.5 em from equilibrium, and released from rest nent Status k here for iled view 17% Part (a) Write an equation for the angular frequency of the oscillation. 17% Part (b) Calculate the angular frequency ofthe oscillation in rad seconds. ee 17% Part (c) Write an equation for the period Tofte oscillations. e 17% Part (d) Calculate the period Tofthe oscillations un seconds #17% Part (e) Write an equation for the maximum speed vmof the block n Status Partial 17% Part (f) Write an equation for the maximum acceleration amax of the block Completed | | | Grade Su mary Completed Partial Partial Posethal 100% 7 8 9 A ttempts remaining: (JBo per attempt) Completed Scbmit Hint I give up Hints: 1 % deduction per hint Hints remaining:- Feedback: 0% deduction per feedback

Explanation / Answer

amax is given by :

amax = Aw2

w = sqrt (k/m)

so, w2 = k/m

So:

amax = Ak/m

This is the equation. If numerical answer is neede, the,

amax = (0.075)(490)/2.8 = 13.125 m/s2

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