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Projectile Motion

Learn about vectors, scalar quantities, velocity components, and the principles of projectile motion in physics with examples and explanations in this comprehensive guide.

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Projectile Motion

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  1. Projectile Motion Jenny Parham Alex Smith Physics, Per 6. 2008

  2. Vector Quantities • A quantity such as force, that has both magnitude and direction. • Examples: Velocity, Acceleration

  3. Scalar Quantities • A quantity such as mass, volume, and time, which can be completely specified by it’s magnitude, and has nodirection.

  4. Velocity Vectors • Vector: An arrow whose length represents the magnitude of a quantity & whose direction represents the direction of the quantity

  5. Velocity Vectors • Resultant- The vector sum of the two or more component vector

  6. Velocity Vectors • The 3-unit and 4-unit vectors add to produce a resultant vector of 5 units, at 37.5 degrees from the horizontal

  7. Velocity Vectors • The diagonal of a square is 2, times the length of one of its sides.

  8. Components of Vectors • Component- one of the vectors often mutually perpendicular whose sum is a resultant vector (any resultant vector may be regarded as a combination of 2 or more components)

  9. Components of Vectors • Resolution- the process of solving a vector into components

  10. Components of Vectors • Any vector drawn one a piece of paper can be resolved into vertical and horizontal components

  11. Projectile Motion • Projectile- any object that moves through air or through space, acted on only by gravity

  12. Projectile Motion • Projectiles near the surface of the Earth follow a curved path, due to the force of gravity.

  13. Projectile Motion • Horizontal component- when no horizontal force acts on the force acts on a projectile horizontal velocity is constant

  14. Projectile Motion • Vertical component- response to the force of gravity

  15. Projectile Motion • Most important to remember!!! …the horizontal component of motion for a projectile is completely independent of the vertical component of motion.

  16. Upwardly Launched Projectiles • With no gravity, the projectile will follow a straight-line path.

  17. Upwardly Launched Projectiles • The horizontal range of a projectile depends on the angle it’s launched at. • The greater the launch angle, the higher the projectile will go, but…

  18. Upwardly Launched Projectiles • Complimentary launch angles will travel the same horizontal distance!!!

  19. Fast-Moving Projectiles • Satellite – an object that falls around the Earth or some other body rather than into it

  20. Works Cited • Hewitt, Paul. Conceptual Physics. Upper Saddle River, New Jersey: Prentice-Hall, Inc., 2002.

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