# Example

 http://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM12/SHM12_Simulation.xhtml

The diagram shows the displacement-time graph for a body performing simple harmonic motion. Suggest in terms of period T the following
(a)    range of time where the velocity and acceleration are in same direction.
(b)    range of time where the velocity and acceleration are in opposite directions

## Model:

http://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM12/SHM12_Simulation.xhtml