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March 25, 2017

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A crane with a movable pulley system on a horizontal arm is moving a large container. The 355 kg container is hanging from a cable that is 6.15 m out on the 7.50 m arm. The arm has a mass of 345 kg. A cable that is attached to its end makes and angle 32.0 degrees with the horizontal arm.
1. What is the tension in the cable supporting the arm?
2. What force does the vertical part of the crane exert on the boom at the point of contact?

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