1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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 average force is exerted on the ball during the contact time?

  1. Sep 26, 2011 #1
    1. The problem statement, all variables and given/known data
    A 0.25 kg ball, initially at rest, is hit with a bat in the x-direction while held 1.00 meter above the ground. If the ball hits the ground 20 meters away and was in contact with the bat for 0.10 sec, What average force was exerted on the ball during the contact time??

    2. Relevant equations
    deltaX= 1/2at^2

    3. The attempt at a solution
    I have tried to get the time, and then velocity in the x-direction but I am stock since I just can't figure out the acceleration.
    aNY HELP!!!!
  2. jcsd
  3. Sep 26, 2011 #2
    Have you tried using the law of Impulses?
    \Delta{\vec{p}} = \vec{\overline{F}}\cdot\Delta{t}
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook