1. Not finding help here? Sign up for a free 30min 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!

Need help solving some equation regarding velocity, distance

  1. Jan 15, 2016 #1
    1. The problem statement, all variables and given/known data

    How to find acceleration and time if the given data is velocity and distance

    2. Relevant equations

    V = at
    S = 1/2at2

    3. The attempt at a solution

    Sorry if I am in the wrong section, however I really dont know how to find the answer with the equations, please kindly provide me the with the explanation, thank you very much.
     
  2. jcsd
  3. Jan 15, 2016 #2

    WIN

    User Avatar

    s/v = t and now can find a
     
  4. Jan 15, 2016 #3
    Don't you also have the equation (derivable from the given equations) : 2 a S = Vf^2 - Vi^2?
     
  5. Jan 15, 2016 #4

    haruspex

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    S=v/t is only valid when there is no acceleration. If there is (constant) acceleration then you need three pieces of information, any three of time, distance, initial velocity, final velocity. If the acceleration is not constant then you need even more.
    Please post the whole question, word for word.
     
  6. Jan 18, 2016 #5

    WIN

    User Avatar

    how about just combining the both?
    v=at so a=v/t
    then substitute it into the second equation. There you will get only 1 unknown in the second equation.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Need help solving some equation regarding velocity, distance
Loading...