Recent content by Waelroe

  1. W

    Simple framework, maximum force and stress.

    Anyone got an idea for this?
  2. W

    Simple framework, maximum force and stress.

    Homework Statement A simple framework by two rods linked in A, B and C. Burdened by a force F. The rods is of square cross section 30x30 mm and made by steel 1550-01 -> E = 210 GPa. [PLAIN]http://img718.imageshack.us/img718/125/ram001.jpg Determinate maximum force F and the stress in...
  3. W

    What is the required force to push a box upwards on an angled surface?

    Yea, okey. So the rest would be correct then?
  4. W

    What is the required force to push a box upwards on an angled surface?

    Homework Statement A box is placed on an angeled surface. m = 15 kg f = 0,3 [PLAIN]http://img5.imageshack.us/img5/8717/friction.png Will the box slip downwards if X = 0? How big does the force X have to be to push th box upwards?Homework Equations The Attempt at a Solution My idea was...