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Projectile Motion. Projectile motion results from a momentary force that causes an object to fly through space in a parabolic motion. There is an x component and a y component to each projectile. The acceleration of gravity, 9.80 m/s 2 affects the y component only. Projectile Motion.
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Projectile Motion Projectile motion results from a momentary force that causes an object to fly through space in a parabolic motion. There is an x component and a y component to each projectile. The acceleration of gravity, 9.80 m/s2 affects the y component only.
Projectile Motion • An object shot horizontally will drop to the ground at the same time as an object dropped. (Ignore wind resistance) • Solve these problems in 2 parts, the x phase and the y phase.
Steps For Solving Projectile Problems • Choose an origin for your x/y coordinate system. • Draw a labeled diagram of the problem. • Analyze the x and y as two related, but separate problems. • List the unknown and known values for the x and y parts then find an equation that will work.
Try some examples… • Page 61 Example 3-3 • Page 62 Example 3-4 • Page 63 Example 3-5 • Page 63 Example 3-6 • Page 64 Example 3-7
Projectile Motion Is Parabolic • X=Vx0 t • Y=Vy0 t – ½ gt2 • If you solve the first equation for t and substitute that into the second equation, once you simplify, you end up with y=ax-bx2 , which is a well known equation for parabolas.
Homework due 9_7 BOP • 19-22,24-27 p72