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# Two-dimensional motion

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Horizontally launched projectileWhat is 2D projectile motion?Visualizing vectors in 2 dimensionsProjectile at an angleLaunching and landing on different elevationsTotal displacement for projectileTotal final velocity for projectileCorrection to total final velocity for projectileProjectile on an inclineWhat are velocity components?Unit vectors and engineering notationUnit vector notationUnit vector notation (part 2)Projectile motion with ordered set notation

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Optimal angle for a projectile part 1: Components of initial velocityOptimal angle for a projectile part 2: HangtimeOptimal angle for a projectile part 3: Horizontal distance as a function of angle (and speed)Optimal angle for a projectile part 4: Finding the optimal angle and distance with a bit of calculus