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This Java applet shall demonstrate, as elongation, velocity, tangential acceleration, force and energy change during the oscillation of a pendulum (assumed with no friction).

The "Reset" button brings the body of pendulum to the initial position. You can start or stop and continue the simulation with the other two buttons. If you choose the option "Slow Motion" the movement will be five times slower. The length of the pendulum, it's mass and the amplitude of the oscillation can be changed within certain limits. In order to select another physical size you must check the appropriate one of the five radiobuttons.

The insignificant dependence of the oscillation period upon the amplitude was neglected in the calculations.

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© Walter Fendt, May 21, 1998
Last update: June 13, 1998

Source file (German version):