Projectile Motion
BlackBoard Notes

======================= Photo - Click for a Larger Version =============================

======================= First Board Section =============================

• What is the initial velocity of the projectile?

Theory:

• Trash can shot scoring:
  • Sink the ball on the first shot: +1 pt.
  • Bonus: Tiny juice can (with different angle!): +0.5 pt.
  • No practice shots!
  • Your instructor must witness your can shots.

======================= Second Board Section =============================

x = x_o + v_oxt + ½a_oxt²           Equation #1

y = y_o + v_oyt + ½a_oyt²           Equation #2

Which quantities are known? Unknown?

x = d	y = 0
xo = 0	yo = h
vox = ?	voy = 0
aox = 0	aoy = –g
t = ?	t = ?

======================= Third Board Section =============================

Simplify:

From Equation #2:	From Equation #1:

======================= Fourth Board Section =============================

Experiment:

1. Parabolic Trajectory:

   

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2. Time of Flight

   

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©	St. Lawrence University	Department of Physics

Revised: 21 Sep 22

Canton, NY 13617