Recent content by AlphaRock

  1. A

    Tension in the strings (with diagram)

    Homework Statement Find the tension in each string given the diagram.Homework Equations Fx = ma. Fy = ma. The Attempt at a Solution Fy = 0. Because it's at equilibrium. T1(sin30) + T2(sin60) - mg = 0. T1 = [mg - T2(sin60)]/(sin30) Fx = 0. T1(cos30) + T2(cos60) = 0. T1 = [-T2(cos60)]/(cos30)...
  2. A

    How To Calculate Energy Of A Child On A Slide?

    Homework Statement 5. A 40 kg child jumps onto a playgorund slide at 3 m/s. If she slides down a vertical drop of 5.0 m while traveling 8.0 horizontally, find: a) The speed of hte child at the bottom of the slide, if there is no friction. b) The intial total energy of the child, relative...
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