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Need help fast explosive collision.

  • Thread starter louise82
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  • #1
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If two carts collide and cart 1 has a spring on it, how can I figure out the final velocity of the first cart????
 

Answers and Replies

  • #2
Doc Al
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What's conserved?
 
  • #3
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kinetic energy and momentum
 
  • #4
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what's throwing me off is the spring....

the carts are initially at rest together, then the spring on cart 1 is released.
 
  • #5
Doc Al
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the carts are initially at rest together, then the spring on cart 1 is released.
I thought you said they collided?

kinetic energy and momentum
Momentum, yes. Kinetic energy, no. (They start at rest, then begin to move.) Hint: Consider the energy stored in the compressed spring.
 
Last edited:

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