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: Significant Digits

  1. Mar 23, 2008 #1
    [SOLVED] Significant Digits

    I know how to do significant digits, but was wondering about answers involving multiple equations. If I find acceleration first, then find net force, should I wait to round the answer until the end?

    a=vf-vi/t and then fnet=ma

    To reiterate, should I keep acceleration long, or round it to complete the group of equations above?

    Thank you very much!
  2. jcsd
  3. Mar 23, 2008 #2
    Don't round off till the end!!!

    Are you able to store values to letters on your calculator? I would suggest doing that if you can.
  4. Mar 23, 2008 #3
    Yeah. Thanks a lot, I'll make sure to do that.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook