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Desperate help needed

  1. Jan 3, 2010 #1
    Newtons 2nd Law experiment

    1. The problem statement, all variables and given/known data

    I need some data for labexperiment 11 Newtons second law in which you add weights to a hanging weight which pulls a cart through a photogate. Anyway i was wondering if anyone else has done this lab because i need data for the acceleration of the system when the weight has .05 .07 .09 .11 and .13 (kilograms) so i can calculate the force of gravity

    2. Relevant equations


    3. The attempt at a solution

    I know i need to calculate the Force of gravity with the mass of the system however in order ot do so i must know the acceleration which i regretfully do not have.
    Last edited: Jan 3, 2010
  2. jcsd
  3. Jan 3, 2010 #2
    Re: Desperate help needed!!!!!!!!!!

    So what you're asking is has anyone done this lab, so you can copy their data? why didn't you do this is class?

    I can't really help you as I never did an actual lab, I instead did it algebraically, acceleration due to gravity (neglecting friction, and on earth at approx seas level, I forgot the radius) is 9.8m/s.
  4. Jan 3, 2010 #3
    Re: Desperate help needed!!!!!!!!!!

    I guess if you want to say it like that yea i need some data, however data is not important in this labit is the work we show in calculating the force of friction as well as graphs and I was not in the classs to get the data i was on a family trip and came back as we got out of school for a week and a half winter break.
  5. Jan 3, 2010 #4
    Re: Desperate help needed!!!!!!!!!!

    ask your teacher over the email for an extension or ask a friend

    or if you have no friends (kidding :) ) then email your teacher and ask for numbers.
  6. Jan 3, 2010 #5


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    Re: Desperate help needed!!!!!!!!!!

    I agree, explain to your teacher that you were away with your family and ask how you can (properly) obtain the data you need to complete the assignment.

    Moderator's note: locking thread.
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