# NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/

## Easy Java Simulations (2001- ) => Collaborative Community of EJS => Topic started by: lookang on February 15, 2015, 01:35:55 pm

 Title: EJSS Simple Harmonic Motion Acceleration Model Post by: lookang on February 15, 2015, 01:35:55 pm EJSS Simple Harmonic Motion Acceleration Modelhttp://weelookang.blogspot.sg/2015/01/shm-chapter-10.html?view=flipcard[lookangframe name=SHM10]AccelerationFrom v = vo cos ω t = x0 ω cos ω twhere xo is the maximum displacementdifferentiating we get a = d v d t = − ω2 ( x 0 s i n ω t ) = − ω2 x Variation with time of acceleration    In terms of x:Therefore,  a = - xo ω2 sin ω t                   = - ω2 (xo sin ω t)which is the defining equation for S.H.M. !               a     = - ω2 x  Variation with displacement of acceleration  since              a = – a0sin ω t          where ao is the maximum accelerationwhere by a0 = ω2 (xo)   http://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM10/SHM10_Simulation.xhtmlModel:http://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM10/SHM10_Simulation.xhtml