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Experiment Projectile Motion (AP)

# Experiment Projectile Motion (AP) - AP Physics Experiment...

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AP Physics Experiment – Projectile Motion (Kinematics in Two Dimensions) Purpose To determine the range of a projectile of known initial velocity and elevation Procedures Part I 1. Check that the platform is level (parallel to the horizontal at 0 o ). Measure and record the vertical distance (y) in meters from the sphere to the ground using a meter stick along a plumb line. 2. Load the sphere and compress the spring until the trigger locks securely. 3. Release the trigger and note the sphere's impact point. Affix sheet(s) of paper to the floor overlaid with carbon paper at that point. 4. Reload sphere and release trigger mechanism. Repeat at least 5 times. Measure and record the mean horizontal distance (meters) from the plumb line to the point of sphere impact (range) [R]. 5. Calculate the time (t) of flight n seconds for the sphere using the equation t=√(2y/ g) where g=9.8m/s 2 . 6. Calculate the initial velocity from the equation v o =R√(g/2y). 7. Calculate the angle of depression θ d to determine the line of sight (LOS) using the equation θ d = tan -1 [(1/v o ) √(gy/2)]. 8. Adjust, measure, & record an elevation angle θ of 45 o .

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