Recent content by Ramacher

  1. R

    Tension; 2 cables holding weight

    thanks, turned out i just wasn't inputting in the calculator right. funny how this one of the simplest problems out of the assignment and i was having trouble with it and easily solved the complex ones. Always the easy stuff that gets me, i guess i think about it too hard, make it more complex...
  2. R

    Tension; 2 cables holding weight

    so do the sum of the forces in the x direction? Wouldn't it then be T(CD)*cos70 - T(AB)*cos50 = 0 ? --- Worked out the sum of the forces in x and y direction solved for TAB Set them equal to each other and still wrong answer :(
  3. R

    Tension; 2 cables holding weight

    Homework Statement A small sphere of weight W is held as shown by two wires AB and CD. If wire AB is cut, determine the tension in the other wire (a) before AB is cut, (b) immediately after AB has been cut. (Ans: (a) TCD = 0.742 W; (b) TCD = 0.940 W)...
  4. R

    2nd Order nonhomogeneous ODE using Undetermined Coefficients

    The characteristic polynomial being the left side of the equation? Isn't it a double root -3? (y+3)2?
  5. R

    2nd Order nonhomogeneous ODE using Undetermined Coefficients

    Homework Statement Find General Solution: y"+6y'+9y=e-3x-27x2 Homework Equations The Attempt at a Solution I know you have yh which is the general solution to the left side of the equation set to 0 and then fine the particular solution. When i try to find yp1 I get...
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