Projectile Motion

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Projectile Motion
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Projectile Motion

• The two dimensional description of an objects
  motion when it is launched into the air and then
  experiences the effect of gravity.

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Projectile Motion

• Break up the 2-D problem into two 1-D problems
• The horizontal dimension is constant velocity
• VDx/Dt

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Projectile Motion

• The vertical dimension is constant acceleration
• (kinematic equations)
• a9.8 m/s2

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The V H chart
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Sample 1

• A ball rolls off a 2.5 m tall horizontal table
  and hits the ground 4.03 m from the base of the
  table. How fast was it rolling on the table?

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Sample 1
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Sample 2

• A potato is shot with an initial velocity of 15
  m/s from an angle of 25o above the horizontal.
  If it is shot from a height of 1.5 m above the
  ground, how far does it travel before hitting the
  ground?

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Sample 2