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!

Homework Help: Coefficient of kinetic energy

  1. Mar 20, 2009 #1
    1. The problem statement, all variables and given/known data

    Consider a bullet of mass m fired at a speed of Vo into a wooden blcok of mass M. The bullet instantaneously comes to a rest in the block. The block with the embedded bullet slides along a horizontal surface with a coefficient of kinetic friction U.
    How far does the block slide before is comes to rest; find s.
    Express answer in terms of m,M,Vo,U and g.

    2. Relevant equations


    3. The attempt at a solution


    I think that is correct , but now my answer does not have Vo,m,M?
    ("Express answer in terms of m,M,Vo,U and g.")
  2. jcsd
  3. Mar 20, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    Hi anelmarx! :smile:

    Use conservation of momentum (it's conserved in all collisions) to find the velocity immediately after the collision. :wink:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Similar Threads for Coefficient kinetic energy
Negative absorption coefficient in muon absorption?