# 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 14, 2015, 12:51:41 pm

 Title: EJSS Horizontal Spring Mass Model Post by: lookang on February 14, 2015, 12:51:41 pm EJSS Horizontal Spring Mass Modelhttp://weelookang.blogspot.sg/2015/01/shm-chapter-04.html[lookangframe name=SHM04]Run Modelhttps://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHMxva/SHMxva_Simulation.htmlQ1: Consider an object P oscillating between point A and B about the origin (0,0), assuming the usual Cartesian Coordinate System apply.  Observe the Model and suggests possible meaning of the following points with the most suitable descriptions.central equilibrium position     instantaneous position     maximum amplitude   m minimum amplitude   m Given the equation x = x0 sin ( ω t ) can describe SHM, suggests the usual symbols associated to the physical quantitycentral equilibrium position      instantaneous position or displacement given by vector OP    m maximum amplitude    m minimum amplitude    m time taken for one complete oscillation, for example Path from O→A→O→B→O     s number of oscillations performed per unit time   1/s. Hence, f and T are related by the equation  f = 1 T angular frequency   rad/s. Since one complete oscillation is 2π radians, ω and f are related by ω = 2π f