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Type II Projectiles

Type II Projectiles. Type II Projectile Motion. Projectile motion in which launch angle is above the horizon and the projectile lands at the same altitude as it was launched.

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Type II Projectiles

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  1. Type II Projectiles

  2. Type II Projectile Motion • Projectile motion in which launch angle is above the horizon and the projectile lands at the same altitude as it was launched. • Example: A golf ball driven from the tee box without the use of a tee lands on the green; the green has the same elevation as the tee box.

  3. Type II Projectile Motion • How do Type II problems differ from Type I problems?

  4. Solving Type II • Draw a VELOCITY vector triangle to find the components of the launch velocity • Set up x and y lists • Solve

  5. Type II Projectile Motion – Sample Problem A golf ball is driven from level ground with an initial velocity of 40 m/s at an angle of 30° above the horizon. Find: • Max height of ball’s path b) hangtime c) range d) impact velocity

  6. Type II Projectile Motion For a given initial speed, what angle gives maximum range?

  7. Type II Projectile Motion For a given initial speed, what angle gives maximum range?

  8. Commit to Memory You’re expected to know the following characteristics of Type II Projectile problems for tests, quizzes, the final, etc. • Δtup = Δtdown

  9. Commit to Memory You’re expected to know the following characteristics of Type II Projectile problems for tests, quizzes, the final, etc. • Δtup = Δtdown • vy = 0 at top of trajectory (zenith); note that v ≠0!

  10. Commit to Memory You’re expected to know the following characteristics of Type II Projectile problems for tests, quizzes, the final, etc. • Δtup = Δtdown • vy = 0 at top of trajectory (zenith); note that v ≠0! • The magnitude of vimpact = the magnitude of vinitial angles are opposite sign

  11. Commit to Memory You’re expected to know the following characteristics of Type II Projectile problems for tests, quizzes, the final, etc. • Δtup = Δtdown • vy = 0 at top of trajectory (zenith); note that v ≠0! • The magnitude of vimpact = the magnitude of vinitial; angles are opposite sign (below vs. above horizontal) • Maximum range is achieved with a 45° angle.

  12. Golf Gizmo http://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=26&ClassID=1152095 Google: explorelearning Login: rzimmerm Password: passwordgizmo Go to physics tab Select golf range Set atmosphere to “none” Click “show grid” Answer the assessment questions

  13. Type II assignment • WS

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