The default state is spring rest at it original length, you can drag to change the length of the spring with mouse. Click show V or F to displace velocity,force vector.

The kinetic energy and potential curve are also displaced as function of time.
Mass m , spring constant k  and original length L can be changed with sliders.

/htdocs/ntnujava/ejsuser/2/users/ntnu/fkh/hspring_pkg/hspring.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(1029.7kB):double click downloaded file to run it. (7 times by 6 users) , Download EJS source View EJS source