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2 discs connected to stiff spring

  1. Dec 17, 2016 #1
    2 identical discs are connected to stiff spring. if you push down on top disc then release, will the system be capable of leaving the ground? during expansion of the spring, what are the forces and their directions exerted on both discs? how is the spring moving? if the bottom disc is capable of leaving the ground, is it due to un upward spring force pulling it up or an upward normal ground force pushing it up? any thoughts are appreciated.
  2. jcsd
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