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How well do you get the joke?
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One dimensional motion:
+x -x Now: +x -x -y +y
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Projectile Motion
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Only force is due to gravity
Key Concepts: Only force is due to gravity What is a Projectile? Anything that moves (in air) where the only force acting is (due to) gravity. Is a moving football is a projectile? Yes, if you assume Gravity is the only force acting
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Key Concepts: think vectors…
The instantaneous velocity v is always tangential to the path of the object v vx = x-component of velocity vx vy vy = y-component of velocity v vx vy
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Vox = Vx as ax= 0 Key Concepts: = angle to the ground
Vi = Initial Velocity = angle to the ground Initial Horizontal velocity vox = vo cos
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Voy changes as ay= -g Key Concepts:
Initial vertical component of velocity voy = vo sin Vi = angle to the ground
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2014!
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Vertical velocity at maximum height
Key Concepts: Learn this diagram Time up = time down (to same height) Vertical velocity at maximum height Vy = 0 m s-1 tair = 2ttop projectile path is a parabola Maximum Height (occurs at half range) Horizontal distance = RANGE
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