1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Velocity equation

  1. Dec 5, 2009 #1
    I have a body of 1kg of mass being acted on by a force of magnitude equal (10000/(y^2))
    [where y is the distance between the body and a certain point] and this force is in the direction pointing to the point
    so depending on what mentioned above :-
    what i know is : f = a = (1000 0/(y^2))
    and that Dy/Dt = V (velocity)

    What is needed is the function of the velocity in terms of time.
    Thanks for reading.
     
  2. jcsd
  3. Dec 5, 2009 #2
    As you have said a=10000/(y^2)
    ==>Dv/Dt=10000/(y^2)
    if y is a fixed value and independent of time ,integrating with respect to t

    v=10^5(t)
    -------
    y^2
     
  4. Dec 5, 2009 #3
    ofcourse y is not a constant value since the distance which is y decreases as the body moves towards the point
     
  5. Dec 5, 2009 #4
    any help ??
     
  6. Dec 6, 2009 #5
    is it this hard i just want to know the velocity equation between body attracted to a point or another body!!!!
     
  7. Dec 6, 2009 #6

    Redbelly98

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    You probably need to find the velocity as a function of distance y first. Using energy conservation would help with that.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Velocity equation
  1. Equation for Velocity? (Replies: 1)

  2. Equation for velocity (Replies: 5)

  3. Equations of Velocity (Replies: 2)

Loading...