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: A Practical on Equilibirum of suspended masses

  1. Oct 30, 2012 #1
    Alright, I did a lab today. Where I had to suspend a mass of 230g from a string attached to a Newton-meter between two clamp and stands.

    I also recorded values of angles.

    My question is for the calculations it says

    The equation F and θ is

    F= mg/sinθ + k

    where m is the mass of the load, k is a constant and g is the acceleration of free fall.
    You may take the value of g to be 9.81 m/s2

    Determine the value for m and k.

    and Determine the percentage uncertainty in the value of θ.

    Okay I am confused, why would I need to determine m? Is m not 230g?

    and i'm not sure how to calculate percentage uncertainty..

    HELP WOULD BE MUCH APPRECIATED.
     
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted