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!

Basic Free-fall Problem

  1. Oct 30, 2011 #1
    1. The problem statement, all variables and given/known data

    A stone is thrown straight upward with a velocity of 10V and travels upward a distance X. What is the displacement when the object is traveling at 5V?

    2. Relevant equations

    xf=x0+v0t+1/2at^2

    vf=v0+at

    vf^2=v0^2+2ax
    3. The attempt at a solution

    .75X? Further, what's the most efficient way of solving for it?
     
  2. jcsd
  3. Oct 31, 2011 #2
    With half the speed the stone has 1/4 of the kinetic energy left so can only go 1/4*X higher or it is at 3/4*X when the speed is 5V.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Basic Free-fall Problem
  1. Free-Fall Problem (Replies: 5)

  2. Free-fall problem (Replies: 2)

  3. Free fall problem (Replies: 19)

Loading...