Recent content by Karina

  1. K

    What is KE of the system using F = ma ?

    It's acceleration is f/m...? Idk. I'm lost now.
  2. K

    What is KE of the system using F = ma ?

    In this case isn't -Gm^2/x the exact same thing as -GMm/r because the masses are the same so we're just multplying 3x3 for the masses or 3^2 which are both equal to 9. Force of gravity acts on one mass, G.
  3. K

    What is KE of the system using F = ma ?

    I found the PE of one with respect to the other because they are all the same mass and distance anyway. So the PE of one is equal to the other 2 as well. V = d/t but the time never changes.. I thought the acceleration would just be g m/s^2..
  4. K

    What is KE of the system using F = ma ?

    Homework Statement Three particles of mass all = 3 kg are located at the vertices of an equilateral triangle and are spinning about their center of mass in an empty space. The sides are length d = 2 m which doesn't change with time. Homework Equations What is the PE of the system? What is the...
  5. K

    Empty Box with Plumb Bob Sliding Down a Plane

    Isn't the pseudo force = m2g+T?
  6. K

    Empty Box with Plumb Bob Sliding Down a Plane

    Not sure if this will suffice? Is that correct? We haven't gone over that in class yet but I am aware that it's a fake force, like something we make up. Is that what I was thinking earlier in the explanation, a pseudo force?
  7. K

    Empty Box with Plumb Bob Sliding Down a Plane

    Homework Statement You hang a plumb bob inside an empty box. The empty box slides down a friction-less inclined plane. The inclined plane makes an angle of 30 degrees with the horizontal. What is the angle the plumb bob makes with the vertical during the slide? Homework Equations g pulled down...
Back
Top