9.3 Torque

Beam Balance (Torque)
Instructions:
Click on the "Start Simulation" button to open the applet window. The applet starts automatically in equilibrium.  You may add 1.0 N weights by attaching them on either end of the balance to the beam or to the other masses. Masses will attach to the beam when positioned between the colored rectangles. New masses are obtained by just clicking the mouse button in either side of the balance. You can delete a mass by clicking on it.

Navigation: You can come back to this window by pressing the "Close Simulation" button on the bottom frame of the utility.

 start.gif (693 bytes)

Explanation:
This applet is an illustration of torque and addition of torques as discussed in section 9.3. Equilibrium is established when the sum of all torques acting on the beam is zero (equation 9.12). Each of the mass pieces has a weight of 1.0 N, and each of the colored rectangles is 0.10 m. "Left side torques" result in counterclockwise rotation and are positive; "right side torques" are negative.
 
Source:
Walter Fendt, Stadtbergen, Germany

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