Analyze three configurations for the crane boom.
Crane boom, 3-kg mass, rope, 100 Newton scale, pulley, clamps and rods, as photographed.
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.
Central Scientific Co., Crane Boom, Cat. No. 74300, Chicago, Ill, Instructions for Use. Central Scientific Co., Chicago, Ill; Selective Experiments in Physics, No. 71990-M32b, Static Equilibrium: The Crane.