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March 28, 2017

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A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 961 and 1540 N, respectively. The acceleration of the cable is 0.620 m/s2, upward.

(a) What is the tension in the cable below the worker?


(b) What is the tension in the cable above the worker?

  • Physics - ,

    tension= totalmass*acceleration+weight
    = totalmass(a+g)
    b) I don't have the drawing. But tension above the worker has to support massbelow*g, and provide mass*a to accelerate.

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