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Chapter 3: Projectile Motion

Chapter 3: Projectile Motion. Gravity, being a downward force, causes a projectile to accelerate in the downward direction. The force of gravity could never alter the horizontal velocity of an object since perpendicular components of motion are independent of each other;

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Chapter 3: Projectile Motion

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  1. Chapter 3: Projectile Motion

  2. Gravity, being a downward force, causes a projectile to accelerate in the downward direction. • The force of gravity could never alter the horizontal velocity of an object since perpendicular components of motion are independent of each other; • vertical force does not effect a horizontal motion.

  3. The result of a vertical force acting upon a horizontally-moving object is to cause the object to deviate from its otherwise linear path

  4. http://www.physicsclassroom.com/mmedia/vectors/hlp.html

  5. http://www.physicsclassroom.com/mmedia/vectors/nhlp.html

  6. Projectile Motion

  7. Practice Problems pp. 664-665 • Calculate the resultant velocity of Freda Flyer who normally flies at 100 km/h and then encounters a 10-km/h headwind(wind coming from ahead). 2. Calculate Freda Flyer’s speed in a 10-km/h tailwind(wind coming from behind).

  8. The Truck and The Ball • Imagine a pickup truck moving with a constant speed along a city street. • In the course of its motion, a ball is projected straight upwards by a launcher located in the bed of the truck. • What will be the path of the ball and where will it be located with respect to the pickup truck? • http://www.physicsclassroom.com/mmedia/vectors/tb.html

  9. Practice Problems pp. 664-665 12. A plane is flying at an altitude of 8000 m at a sped of 250 m/s. At what horizontal distance ahead of its target must a water balloon be released to strike the target on the ground(neglecting air resistance)? http://www.physicsclassroom.com/mmedia/vectors/pap.html

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