1. Limited time only! Sign up for a free 30min personal 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!

What to do when you can't remember a formula for a word problem?

  1. Oct 19, 2013 #1
    How do you reason it out? I get confused on problems that involve distance rate and time. What wording should I look for to tell me if s should be positive and the number should be negative or any variation in between? Should there never be a negative involving a DRT formula?
  2. jcsd
  3. Oct 19, 2013 #2


    User Avatar
    Gold Member

    what often works is just do math that makes the units work out right.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook