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195 Projectile Motion

195 Projectile Motion - SAN DIEGO MESA COLLEGE PHYSICS 195A...

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SAN DIEGO MESA COLLEGE NAME ________________ PHYSICS 195A LAB REPORT DATE TIME GROUP #_____ PARTNERS____________________________ _____________________________ _____________________________ TITLE: Projectile Motion OBJECTIVE: To predict the position of a particle moving in two dimensions, thereby testing the vector nature of displacement, velocity and acceleration. CAUTION: THE PROJECTILE CAN HURT! BE CAREFUL. THEORY: Assumptions: 1. The Earth is stationary, flat, airless, and has a constant acceleration due to gravity of 9.81 m/s 2 . 2. The velocity of a particle moving in two dimensions can be treated as the vector sum of its motion in the x and y directions. Kinematic Equations of Motion for constant acceleration: x - direction y – direction 1. v fx = v ox + a x t 1. v fy = v oy + a y t 2. x f = x o + v ox t + ½ a x t 2 2. y f = y o + v oy t + ½ a y t 2 3. v fx 2 = v ox 2 + 2 a x x 3. v fy 2 = v oy 2 + 2 a y y Projectile Motion Equations: ( using upward as positive ) x(t) = v ox t Note: a x = 0, a y =- g for upward y(t) = y o + v oy t - ½ gt 2 = +g for downward v ox = v fx v y = v oy - gt v ox = v o cosθ 0 v oy = v o sinθ 0 Rev by MC 5-26-05
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PHYSICS 195A LAB:
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