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    U Physics 12E 7.71 Conservation of Energy: An experimental apparatus with mass

    The question is shown below the --- or this question and answerbook is from U Physics 12E #7.71. I uploaded a JPG that can be seen at http://i43.tinypic.com/35j9jja.jpg I don't understand this problem. I see that to solve this Conservation of Energy and N2L are merged using x, and that h from...
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    Stuck on algebra to N2L solution

    I already understand the problem, but am having trouble with the algebra for textbook Fund of Physics Solutions, Halliday, 8e, Ch6 Prob 34. Copied here http://i56.tinypic.com/20uwhw4.jpg I've been staring at this solution to N2L for hours and can't figure out how to go from the top 4 N2L...
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    Which textbook has plenty of symbolic intro MECHANICS problems ?

    I passed 1st quarter Physics for Life Sciences with an A last spring. Now I plan to take the Calculus version this winter quarter. I looked at the the Physics department's example homeworks and exams and they are totally MULTI-step problems, 2, 3, 4, 5, and 6 steps, symbolic only. They appear...
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    Skydiver #1 #2 fall problem, Linear or Quadratic ?

    Homework Statement Skydiver #1 from the University Skydiving Club steps out of a plane when it is 1 miles above the ground and 10 seconds later skydiver #2 steps out of a plane (at the same height). They both want to land on the ground at the same time. To make an estimate assume that...
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