PURPOSE: Analyze three configurations for the crane boom.
DESCRIPTION: The three configurations pictured may be readily set up and analyzed. The dynamometer measures tension in the rope; an internal spring scale measures the compression in the boom.
REFERENCES: (PIRA 1J40.70) See Demonstration Reference File for further information.
EQUIPMENT: Crane boom, 3-kg mass, rope, 100 Newton scale, pulley, clamps and rods, as photographed.
SETUP TIME: 5 min.
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