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HomeC. Kinematics and DynanmicsC5. Third Law of MotionC5-01. Newton's Third Law - Static Dynamometers
Newton'S Third Law - Static Dynamometers
Purpose
To demonstrate action-reaction in the static case or, alternatively, to show that the sum of two forces on a point in equilibrium is zero.
Equipment
As photographed.
Images
Description
The dynamometer springs have been arranged so that the upper meter measures the force pulling down on it, while the lower meter measures the force pulling up on it, including its own weight. Pulling down on the hook below the lower meter results in a pair of equal and opposite forces acting on the coupling washer.
References
Bill Konrad, Demonstration to Illustrate Newton's Third Law, Idea Bank Collation, Idea No. 120. Mario Iona, Misunderstanding the third law, TPT 18, 219, (1980).
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See pagesc1. center of mass motion
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See pagesc3. first law of motion
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See pagesc4. second law of motion
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See pagesc5. third law of motion
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See pagesc6. friction
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See pagesc7. collisions
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See pagesc8. mechanical energy & power
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See pagesc1. center of mass motion
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See pagesc3. first law of motion
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See pagesc4. second law of motion
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See pagesc5. third law of motion
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See pagesc6. friction
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See pagesc7. collisions
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See pagesc8. mechanical energy & power
Physics Lab Demos