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You can raise or lower the load with the mouse. If you click on the mouse button a spring balance appears showing the tension in the string. You can change the weight of the load and the hanging pulley(s) by using the appropriate boxes. Inputs higher then the spring scale limit (10 N) are automatically changed.
© Walter Fendt, March 24, 1998
Last update: May 21, 1998
Thanks to professor Taha Mzoughi (Mississippi State University) for the translation!