Example 

A mass undergoes an oscillation where the maximum/minimum amplitude is 16.0 m mark and 2.0 m mark on a rule respectively. It was found that the particle only takes 3.14 s to move from X = 16.0 m to Y = 2.0 m during the oscillations as shown. Determine the    
(a)     amplitude,       
(b)     period,      
(c)     frequency,       
(d)     angular frequency, of the oscillations. 
[ 7.0 m, 6.28 s, 0.166 Hz, 1.00 rad/s ]

Model:

https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM16_2/SHM162_Simulation.xhtml

back up https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM05/SHM05_Simulation.xhtml
Q1: run model with different mass m and spring constant k to explore different amplitude x0, period T, frequency f and angular frequency ω.
Q2: setup your own initial conditions and test your understanding of with is the physical meaning of amplitude x0, period T, frequency f and angular frequency ω.