[SOLVED] Tension in Strings HELP thanks!--very simple. 1. The problem statement, all variables and given/known data A 16 kg object hangs in equilibrium from a string with a total length of L=5m and a linear mass density of u= 0.0010 kg/m. The string is wrapped around two light, frictionless pulleys that are separated by a distance of d=2.0m. A) Determine the tension in the string. B) At what frequency must the string between the pulleys vibrate in order to form the standing-wave pattern shown in Figure b)? Picture is attached!! 2. Relevant equations 3. The attempt at a solution If there was an axis at the bottom of the inverted triangle and the angles were measured from the axis to the strings; I have also tried using; v = Square root of (tension/u), but I don't have v, So i tried to find v using f = v/ wavelength, but i don't have frequency. I have tried so many things and I can't seem to get a start. Any hints?