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Mechanics

Physics

After this lesson, you should be able to:

  • Give examples demonstrating that a net force is required to change the momentum of an object
  • Link this requirement to Newton’s first law of motion
  • Represent change in momentum as a vector, the difference between the initial and final momenta of an object
  • State Newton’s second law in terms of rate of change in momentum
  • Determine the change in momentum of an object in a variety of scenarios, i.e. when
  • Its velocity increases
  • Its velocity decreases
  • It changes direction