Super+Cool+Rifle+Tossing.fosho.

RIFLE TOSSING. Danielle Finnegan & Lauren Marchetto __GOAL__: How does the mass and length of three different rifles affect the height and velocity of a Triple Toss? We know that all objects fall with an acceleration of 9.8 m/s/s, but we want to know how other factors such as: air resistance, force, and spinning the rifle will affect the height and velocity of a toss.

1. Find the following materials. -Three different rifles with different masses -Tape -Video camera 2. Find the mass of the rifles 3. Find measurements (length, width and height). 4. Find an open area with high celing condusive to throwing rifles. 5. Toss RIFLE#1 __three__ times 6. Find average height and time from the three tosses. 7. Repeat steps 6 and 7 with RIFLE#2 and RIFLE#3 8. Record data 9. Download videos of rifles onto LoggerPro 10. Analyze videos 12. Find the differences between the three average heights and veolcities 13. Explain and conclude our results
 * __PROCEDURE__**

__**Length of Rifles**__ RIFLE 1: 89.5 cm RIFLE 2: 92.5 cm RIFLE 3: 89.5 cm

RIFLE 1: 980 g RIFLE 2: 973 g RIFLE 3: 961 g
 * __Mass of Rifles__**

From Top to Bottom: Rifle 1, Rifle 2, Rifle3

Rifle 1 media type="youtube" key="nVAJ530brPY" height="360" width="480"

Rifle 2

media type="youtube" key="lWXvWPlejEM" height="360" width="480"

Rifle 3

media type="youtube" key="TmMHtj8YKjs" height="360" width="480"


 * Rifle || Trial || Height ||
 * 1 || 1 || 1.83m ||
 * 1 || 2 || 1.98m ||
 * 1 || 3 || 2.03m ||


 * Rifle || Trial || Height ||
 * 2 || 1 || 2.47m ||
 * 2 || 2 || 2.16m ||
 * 2 || 3 || 1.89m ||

Average Height: Rifle 1 1.83+1.98+2.03=5.84 5.84/3=**1.946 m**
 * Rifle || Trial || Height ||
 * 3 || 1 || 1.89m ||
 * 3 || 2 || 2.09m ||
 * 3 || 3 || 1.84m ||

Average Height: Rifle 2 2.47+2.16+1.89=6.52 6.52/3=**2.173 m** Average Height: Rifle 3 1.89+2.09+1.84=5.82 5.82/3=**1.94 m**

__**TIME**__ Rifle 1: **2.69 seconds** Rifle 2: **2.424 seconds** Rifle 3: **2.22 seconds**



Rifle 1: **0.72 m/s** Rifle 2: **0.89 m/s** Rifle 3: **0.87 m/s**
 * __VEOLCITY FINAL__**


 * __CONCLUSION__**

The mass and the length both effect the height and velocity of a toss with the rifle. We first found the mass and length of all three rifles. All three rifles had different masses because the amount of tape differently added to each one, but rifles 1 and 3 did have the same length so we predicted we would have similar results for those answers. We threw the rifles each three times and recorded the tosses, we then used the videos and LoggerPro to find the height and amount of time for each toss. After finding three different answers for each rifle, we averaged the the height of each toss. Then we also averaged the time each rifle took to get an accurate time in seconds. Then using the equation Velocity=Distance/Time we found the average velocities for each rifle: Rifle 1: 0.72 m/s, Rifle 2: 0.89 m/s and Rifle 3: 0.87 m/s. We figured from the information gathered that the more mass you have effects the height and velocity, but what really made the difference was the difference in length of the rifle's body. For height of each toss rifles 1 and 3 had very similar number and we remembered that rifles 1 and 3 also had similar length size. Rifle 2 had the longest length and the highest tosses and highest velocity. We figured that because something has more mass you are going to use more force to make it go higher and rotate three times, but when something is lighter and longer, using the same amount of force can cause the rifle to go higher and spin faster. Obviously there are some huge components of this experiment that could have cause a different outcome: human error-tossing with different amounts of force and LoggerPro errors.