Projectile Motion Laboratory

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Projectile Motion Lab

Introduction: The purpose of this experiment was to find how changing the angle and velocity would affect the distance the object went, height the object went, and time the object was in the air. Before this lab I could not tell how the angle and velocity would change the results. I needed to figure out what angle and what velocity made the object go farther or make it stay in the air longer. I also found mass will affect the height and distance. I used the site Galileo and Einstein to figure out these factors. (Fowler, M)

Theory: The theory behind projectile motion is anything thrown or shot moves at a constant speed and is affected by a constant acceleration of -9.8 m/s2. (Projectile Motion) The equation x = vot shows the distance the object will travel (Physics: Principles and Problems). The equation v = vo+ at is used to measure the height. To get the total velocity we add both velocities.

Experimental Procedure: First open internet explorer and visit http://galileoandeinstein.physics.virginia.edu/. When the page is opened click on Applets, on that page click on Projectile Motion. I used this to adjust the projectiles angle and velocity which would determine the distance, time or height of the object. Changing the variables was not hard; however you had to make sure it met the requirements and did not exceed the limit that was given. After I got all my results and data I had to get on to a school computer to access the “Data Studio” software. After on the software, we had to click “Graph Equation”. Then after given the chart I entered my data which created a graph. After reassuring the data was correct we added labels such as meters or seconds. After everything was correct we had to click “Fit” to make a best fit line. There were many options but majority of the lines were either a “quadratic” or “line” depending on the graph. Once the best fit line was placed the graph was complete. This was done six times for each set of data to make six separate graphs. All six graphs were printed.

Data and Graphs:

Velocity (x) Distance (y)

10 m/s 10.19 m

20 m/s 40.77 m

30 m/s 91.74 m

40 m/s 163.1 m

50 m/s 254.84 m

60 m/s 366.97 m

70 m/s 499.49 m

80 m/s 652.4 m

90 m/s 825.69 m

95 m/s 919.98 m

Velocity (x) Height (y)

10 m/s 2.55 m

20 m/s 10.19 m

30 m/s 23.93 m

40 m/s 40.77 m

50 m/s 63.71 m

60 m/s 91.74 m

70 m/s 124.86 m

80 m/s 163.09 m

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