Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Lab Related Question

  1. Jun 19, 2007 #1
    Hi,

    We have been working on a lab that dealt with oscillations and simple harmonic motion. We attached two springs to an air cart, placed it on an air track, and released a distance of 10cm from the equilibirum point. To investigate the relationship between mass and the period, we added 50 g masses to the cart and performed various trials and timed the period.

    We then were instructed to graph the m vs T^2 with m being the total mass and T^2 being the time of the period squared. My question is, what does the slope of this line represent. The line increases linerly, and i believe that the relevant equation is
    T of period = 2pi SwRt(m/k)....or is it k/m...i cant remember right now as I am at work...

    but anyways...what could the slope of the line represent....i first thought it might be the spring constant...but I do not belive that is correct anymore...

    any ideas would be greatly appreciated
     
  2. jcsd
  3. Jun 19, 2007 #2

    Kurdt

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Remember the equation of a straight line y = ax + b, where m is the gradient or the slope. If y = m and x = T2 then what is a?

    Hint: Try rearranging your period equation.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook