Lecture 4A16-Physics.pdf

# Lecture 4A16-Physics.pdf

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Lecture 4

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Unit vectors Motion in 1D Motion in 2D projectile motion Interpretation of motion graphs ( x t , v t , a t ) Topics
Unit vectors

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You toss a ball straight upward, in the positive direction. The ball falls freely under the influence of gravity. At the highest point in the ball's motion, A. its velocity is zero and its acceleration is zero. B. its velocity is zero and its acceleration is positive (upward). C. its velocity is zero and its acceleration is negative (downward).

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