Friday, 12 July 2013 16:46

## C5-02 SPRING AND PULLEY PARADOX

• ID Code: C5-02
• Purpose: Show that the action-reaction pairs have equal magnitude
• Description: Initially, set this up with the horizontal spring scale facing away from your students. The mass on the hanger pulls down on the vertical spring scale with a force W equal to its weight. Challenge your students to predict what the other scale will read. After discussion, turn it to reveal: The spring scale reads the weight of the mass even thought it is horizontal between the pulleys
• Availability: Available
• Loc codes: FS2
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