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Torque Condition For Equilibrium
Purpose
To demonstrate that equilibrium of forces is an insufficient condition for static equilibrium.
Equipment
Pre-assembled as photographed.
Images
Description
The weight of the rod is balanced by two equal weights hung over pulleys. While holding the rod fixed, move a weight from one side to the other. The force condition for equilibrium is still met, but the torque condition is not satisfied, and therod will rotate.
References
(PIRA unavailable.)
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See pagesb1. center of mass statics
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See pagesb2. equilibrium of forces & torques
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See pagesb3. simple machines
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See pagesb4. elasticity
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See pagesb1. center of mass statics
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See pagesb2. equilibrium of forces & torques
-
See pagesb3. simple machines
-
See pagesb4. elasticity
Physics Lab Demos