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After this lesson, you should be able to:

  • Explain why impulse is associated with collisions
  • Define impulse as the product of net force and contact time (duration of collision)
  • Understand that Newton’s second law can be also expressed in terms of impulse, the impulse-momentum theorem
  • Represent impulse as a vector
  • Use the impulse-momentum theorem in problem solving to determine the
  • average force involved in a collision
  • time of collision
  • change in momentum


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