SHM Chapter 13 x,v,a vs t practice 3

Example

A body moves in a simple harmonic motion and the following graph gives the variation of its displacement x with time t.



a)    Write an equation to represent the given simple harmonic motion.
b)    Find the time duration in the first cycle when the body is located above a displacement of 0.25 m.
[ x = x_o sin (1.05 t) , Δt = 1.9 s ]

The hint can be found in the model

http://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM13/SHM13_Simulation.xhtml

Solution:

Model:

http://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejss_model_SHM13/SHM13_Simulation.xhtml