Recent content by iwsdw

  1. I

    A mechanics question about work and vectors

    Ah yes! Thank you very much. ^^
  2. I

    A mechanics question about work and vectors

    I don't know how to find the angle. How can I use the displacement information to find the angle?
  3. I

    A mechanics question about work and vectors

    this year i started studying physics, so this question might be easy but i couldn't do it... i'll be happy if you help me. ''A constant force (5N)i-7(N)j is applied on an object and it moves. The total displacement of the object is l=(3)i+(6)j+(3)k. Find the angle between the force and the...