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10 Projectile Motion

10 Projectile Motion. Homework: RQ: 3, 13, 16, 18, 20. Ex: 9, 12, 37. projectiles. weight-force air-drag ≈ 0 “flight-time”: launch speed & angle “Range” = horizontal speed x flight-time. Projectile Motion = travel + fall. Kepler’s Laws of Orbits. Elliptical orbits

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10 Projectile Motion

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  1. 10 Projectile Motion • Homework: • RQ: 3, 13, 16, 18, 20. • Ex: 9, 12, 37.

  2. projectiles • weight-force • air-drag ≈ 0 • “flight-time”: launch speed & angle • “Range” = horizontal speed x flight-time

  3. Projectile Motion = travel + fall

  4. Kepler’s Laws of Orbits • Elliptical orbits • Equal areas in equal times • Square of year ~ cube of radius

  5. Elliptical Orbits • Speed increases as distance decreases • One side slowing, one side speeding • ellipse shape • simulated orbits

  6. Summary • Range = horizontal speed x flight-time • Kepler’s Laws, speed & distance

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