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Chapter 2, Section 3
       Free Fall
Free Fall
• Free fall – in the absence of air
  resistance, all objects dropped near the
  surface of the Earth fall with a constant
  acceleration
• Denoted by the symbol g
• g = - 9.81 m/s2 (negative because
  acceleration is directed downward)
Graphical Analysis of velocity vs.
             time graph
• Straight line slope indicates
  acceleration is constant (fig. 2-16)
• There is an instant where velocity is 0
  (when ball reaches peak of upward
  motion)
Chapter 2, Section 3 Notes

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Chapter 2, Section 3 Notes

  • 1. Chapter 2, Section 3 Free Fall
  • 2. Free Fall • Free fall – in the absence of air resistance, all objects dropped near the surface of the Earth fall with a constant acceleration • Denoted by the symbol g • g = - 9.81 m/s2 (negative because acceleration is directed downward)
  • 3. Graphical Analysis of velocity vs. time graph • Straight line slope indicates acceleration is constant (fig. 2-16) • There is an instant where velocity is 0 (when ball reaches peak of upward motion)