Help with physics equation from image

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Shackleford
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Homework Statement



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Homework Equations


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The Attempt at a Solution


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Attachments
  • Handwritten free-body setup of a pulley system: block A of mass 30 kg on a horizontal surface with coefficient of friction 0.40, rope over a pulley to hanging blocks B (40 kg) and C (10 kg). Work shows a = 4.65 m/s^2 = (-117.6 + 392 + 98) N / 80 kg and tension T = 51.5 N = 98 N - (10 kg)(4.65 m/s^2) for the B-C rope.
    work.jpg
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