Elastic Collision between ball and pivoted rod

  • Thread starter erisedk
  • Start date
  • #1
374
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Homework Statement


This is a solved problem--
http://web.mit.edu/8.01t/www/materials/InClass/IC_Sol_W13D1-10.pdf

Homework Equations




The Attempt at a Solution


In the solution, they conserve energy and angular momentum. Can I conserve linear momentum? Also, can I use coefficient of restitution (as e=1)?
 

Answers and Replies

  • #2
591
12
I think we can not conserve linear momentum because if we consider rod and ball as a system then an external force acts on it(at P). But we can use e=1 here.
 

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