AP_Physics_B_-_Projectile_Motion

# AP_Physics_B_-_Projectile_Motion - ProjectileMotion AP...

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Projectile Motion AP Physics B

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What is  projectile? Projectile - Any object which projected by some means and continues to move due to its own inertia (mass).
Projectiles move in TWO dimensions Since a projectile moves in 2- dimensions, it therefore has 2 components just like a resultant vector. Horizontal and Vertical

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Horizontal “Velocity” Component NEVER changes, covers equal displacements in equal time periods. This means the initial horizontal velocity equals the final horizontal velocity In other words, the horizontal velocity is CONSTANT. BUT WHY? Gravity DOES NOT work horizontally to increase or decrease the velocity.
Vertical “Velocity” Component Changes (due to gravity), does NOT cover equal displacements in equal time periods. Both the MAGNITUDE and DIRECTION change. As the projectile moves up the MAGNITUDE DECREASES and its direction is UPWARD. As it moves down the MAGNITUDE INCREASES and the direction is DOWNWARD.

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Together, these components produce what is called a trajectory or path. This path is
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AP_Physics_B_-_Projectile_Motion - ProjectileMotion AP...

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