Energy transfer, not sure how to do!

  • Thread starter GunarsA
  • Start date
  • #1
1
0

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 with this
 

Answers and Replies

  • #2
1,137
0
Hi GunarsA :smile:

Welcome to PF !!!

did you try Using conservation of momentum??​
 
  • #3
This sound like a coughinelasticcollisioncough problem :)
 

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