Building an air cannon that shoots a wad of paper

AI Thread Summary
To calculate the initial velocity of a wad of paper shot from an air cannon, the key parameters include the weight of the projectile (4.5 grams), maximum pressure (150 PSI), tank volume (1.25 liters), and barrel diameter (1 inch). The length of the barrel is also necessary to complete the calculations. With these details, one can apply principles of fluid dynamics and projectile motion to estimate the initial velocity and subsequent distance traveled. Additional factors such as air resistance may also influence the final results. Accurate calculations will help in optimizing the cannon's performance.
MechE1
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We are building an air cannon that shoots a wad of paper. I know the volume of the tank, the pressure of the tank, the size of the barrel, and the weight of the object. I need to know how to solve for initial velocity given this information. I will use the Vi to find the estimated distance.

Weight 4.5 grams
Max Pressure = 150 PSI
Tank Volume = 1.25 liters
Barrel Diameter = 1 inch

Do I need more information?

Thank you!
 
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