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!

Work Energy Theorem Problem

  1. Feb 15, 2012 #1
    1. The problem statement, all variables and given/known data

    A weapon fired a 25.8-kg shell with a muzzle speed of 880 m/s. What averageforce acted on the shell?


    2. Relevant equations

    work energy theorem?

    3. The attempt at a solution

    Can someone please explain where the 6.00 comes from???

    Starting from rest, the shell acquired a kinetic energy of (1/2)mv2

    by a force, F,acting through a distance, d.Fd = (1/2)mv2
    F(6.00) = (1/2)(25.8)(880)2
    F = 1664960 N = 1.66 MN
     
    Last edited: Feb 15, 2012
  2. jcsd
  3. Feb 15, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    welcome to pf!

    hi razzmatazz! welcome to pf! :wink:

    6 m must be the length of the muzzle (didn't the question say so?) :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Work Energy Theorem Problem
Loading...