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3-3_projectiles (1)

# 32 shows us that the x and y portions fig of motion

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Unformatted text preview: hows us that the x and y portions Fig of motion are independent of each other. of The ‘x’ motion is uniform motion The ‘y’ motion is free fall Horizontal Projectiles Horizontal Sample Problem 1 – An arrow is shot from a height of 20.0 m with an An initial horizontal velocity of 18.0 m/s. How far in the horizontal direction will the arrow travel before it hits the ground? before Solution – G/R: G/R: v1x = 18.0 m/s ay = 9.8 m/s² [down] ∆dy = 20.0 m [down] 20.0 ∆dx = ?? – A: ∆dy = v1y ∆ t + ½ a ∆ t² 1y A: But v1y = 0 – So, ∆dy = v1y ∆ t + ½ a ∆ t² 1y So, Solution, Con...
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