Physics/Notes 6.1

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Physics/Notes 6.1

  1. 1. Motion in Two Dimensions
  2. 2. Section 6.1Projectile Motion How do I separate projectile motion into horizontal and vertical components? How can I utilize kinematic equations to solve projectile motion problems?
  3. 3. Projectile Motion Examples?
  4. 4. Path Path? Trajectory – the path of a object experiencing projectile motion
  5. 5. Projectile Motion Projectile – an object shot through the air Can be anything Kinematic Equations apply While the projectile is traveling we can draw a free body diagram
  6. 6. Free – Body Diagram
  7. 7. From a cliff… If I drop a ball off a cliff, what is the force acting on it? What if I push it off the cliff? What if I shoot it up at an angle off the cliff?
  8. 8. Gravity! Gravity is the only acceleration in projectile motion problems Does gravity apply horizontally? Is there any acceleration in the horizontal direction? Application to equations?
  9. 9. Trajectories of Two SoftballsTotal Time?
  10. 10. Free–Body Diagrams
  11. 11. Strategies List Data by Horizontal and Vertical What is the initial horizontal velocity? What is the initial vertical velocity? Is there a launch angle? What is the launch height? What is the launch length?
  12. 12. Velocity ComponentsWhat if Vx = 8 m/s and Vy = 10 m/s?
  13. 13. Examples A bowling ball is rolled off a 50 m high cliff with a velocity of 5 m/s. How long does it take the ball to reach the ground? How far from the base of the cliff does the ball hit the ground? What are the horizontal and vertical components of the velocity just before it hits the ground?
  14. 14. Homework Page 150, # 1 – 3 Tossed Ball Worksheet
  15. 15. Firing a Cannonball http://phet.colorado.edu/sims/projectile- motion/projectile-motion_en.html
  16. 16. Short Cuts
  17. 17. Example A ball is launched at 4.5 m/s at 66° above the horizontal. What are the maximum height and flight time of the ball?
  18. 18. Homework Projectile Motion Worksheet

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