Recent content by LadyAnn

  1. L

    Laplace Transform - Step Functions

    Homework Statement Please help by explaining in detail how to find the Laplace transform of the function f(t) = { 2 0 <= t < 3 { -2 t >= 3. Homework Equations The Attempt at a Solution For the most part I know that U(t-3)(t-3). I want to account for the amplitude...
  2. L

    Calculating Fall Time: Diffy Q Word Problem with Parachute and Air Resistance

    Homework Statement A person bails out of an airplane at an a;titude of 15,000 feet, falls freely for 35 seconds, then opens the parachute. How long will it take the person to reach the ground? Assume linear air resistance pV ft/s^2, paking p=.17 without the parachute and p=1.5 with the...