Lever Principle

This applet shows a symmetrical lever with some mass pieces each of which has a weight of 1.0 N. The lever arms can be read from the coloured rectangles; one rectangle corresponds to 0.10 m. The lever is in balance when the applet is started.

You can attach a new mass piece or put it to another place with pressed mouse button. In a similar way you can remove a mass piece by clicking on it.

A lever is in balance if the total leftside torque is equal to the total right side torque.

Physics Applets

URL: http://home.a-city.de/walter.fendt/phe/lever.htm
© Walter Fendt, November 2, 1997
Last modification: December 20, 1999

This applet is part of the Contemporary College Physics Simulation Library.

eus will "survive" during a given interval. This probability amounts to 50 % for one half-life period. In an interval twice as long (2 T) the nucleus survives only with a 25 % probability (half of 50 %), in an interval of three half-life periods (3 T) only with 12,5 % (half of 25 %) and so on.