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Mechanics

Physics

After this lesson, you should be able to:

  • Represent a Cartesian plane in 2-D as a set of x and y axes
  • Add co-linear vectors, on an x or y axis
  • Distinguish between vector and scalar components
  • Find the resultant R of Rx and Ry graphically, using the
    • tail-to-head method
    • tail-to-tail (or parallelogram) method
  • Calculate the resultant R of Rx and Ry using the theorem of Pythagoras
  • Find the resultant of a number of forces graphically, with the tail-to-head method
  • Find the resultant of a number of forces by calculation
  • Understand what is a closed vector diagram
  • Determine the direction of the resultant using trigonometric functions