Applet created by prof Hwang i just do some modification on layout.
Original Applet [url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2149.0]Spring: relation between displacement,velocity,acceleration,force and energy [/url]

The following simulation show relations between displacement$(x)$, velocity$(v_x)$, acceleration $(a_x=-k*x/m)$,force$(F_x=-k*x)$, kinetic energy$(K=\tfrac{1}{2}m*v_x^2)$ and potential energy$(U(x)=\tfrac{1}{2}k*x^2)$

Drag the blue object at one end of the spring and let go.

/htdocs/ntnujava/ejsuser/37048/users/egy/ahmed/dynamic_springxvaH_pkg/dynamic_springxvaH.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list