Recent content by GunarsA

  1. G

    Energy transfer, not sure how to do

    Homework Statement 1) 27,000 kg railroad car moving at 2.7 m/s hits a railroad car (stationary) weighing 9,300 kg. Heavy railroad car goes opposite direction at .6 m/s. How fast will the empty car go? Homework Equations no clue The Attempt at a Solution No idea where to start...