Recent content by Shadow236

  1. Shadow236

    Help calculating work in an xy plane

    Oh! It looks like it's the dot product of the force and the displacement vector. EDIT: Okay, I got a) correct: W = F dot d = 0 + 0 = 0 Now for b) I get 5.13x2 and it is wrong. I think it might have something to do with the x
  2. Shadow236

    Help calculating work in an xy plane

    Yes that is the correct statement, sorry about that. I have corrected it. It does say in the question "Find the work done by this force on the particle and the final speed of the particle as it moves along a path as follows", but it looks like the questions are asking for work, so I guess I'll...
  3. Shadow236

    Help calculating work in an xy plane

    Homework Statement A force = (1.9 N/m2)x2i is applied to a particle initially at rest in the xy plane. Find the work done by this force on the particle and the final speed of the particle as it moves along a path as follows. The given force is the only force doing work on the particle. a) in...
  4. Shadow236

    Finding the tension in a rope when acceleration is balanced

    Oh okay, that was similar to what I tried. I got ~58.80 N. Thank you very much!
  5. Shadow236

    Finding the tension in a rope when acceleration is balanced

    Ahhh, I see. Awesome. So do you think I did the tension part correctly then?
  6. Shadow236

    Finding the tension in a rope when acceleration is balanced

    In the Tension equation? I thought I was because it is (m1 x g)(...)
  7. Shadow236

    Finding the tension in a rope when acceleration is balanced

    Homework Statement A m1 = 7.3 kg block and a m2 = 10.2 kg block, connected by a rope that passes over a frictionless peg, slide on frictionless incline. (a) Find the acceleration of the blocks and the tension in the rope. (b) The two blocks are replaced by two others of masses m1 and m2...
  8. Shadow236

    Newton's second law with vectors

    Yes, I had constant acceleration. Thank you.
  9. Shadow236

    Newton's second law with vectors

    Alright, I will try that. Thank you very much. Are my equations for (b) and (c) okay? I just want to check because I've already submitted this question a few times. EDIT: Hey, I got it right! =D Fractions for life, haha. Thanks a lot!
  10. Shadow236

    Newton's second law with vectors

    So you think that I was correct to add F1 and F2? If that is true I should just leave Fnet as 14/9i - 13/9j?
  11. Shadow236

    Newton's second law with vectors

    Homework Statement A 9 kg object is subjected to two forces, http://www.webassign.net/images/Farrowbolditalic.gif1 = 7 N i - 4 N j and [PLAIN][PLAIN]http://www.webassign.net/images/Farrowbolditalic.gif2 = 7 N i - 9 N j. The object is at rest at the origin at time t = 0. (a) What is the...
  12. Shadow236

    Finding the magnitude necessary to balance two forces

    Homework Statement Two forces are acting on an object. The magnitudes of them are F1=10.0N, F2=4.0N. If a third force F3 is applied on the object, what is the smallest magnitude of F3 needed to balance the first two forces? Homework Equations N/A The Attempt at a Solution I've done...
  13. Shadow236

    Magnitude of acceleration given the orbit

    Does it represent the mass of the earth? EDIT: It does represent the mass of the Earth. Thank you!
  14. Shadow236

    Magnitude of acceleration given the orbit

    Homework Statement A satellites are placed in a circular orbit that is 3.22 × 105 m above the surface of the earth. What is the magnitude of the acceleration due to gravity at this distance?Homework Equations a = MG/R^2The Attempt at a Solution For the above formula I have trouble because I do...
  15. Shadow236

    Magnitude of acceleration due to gravity

    It looks like you guys are correct, because I got the answer correct and the book says the following...: http://twitpic.com/dx955g Thank you!
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