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GinaMitchell

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- Homework Statement
- Hi - I built an air cannon to launch a fishing lure for my science fair project. The air cannon launched a 1/4 oz lure 31.4 meters. Based on this, I calculated the initial velocity to be 17.54 m/s using the formula for range of a projectile. I want to be able to launch the lure 38.5 meters. I am trying to figure out how much PSI I would need to launch it 38.5 meters. Does anyone know an equation I can use to predict this? I used 100 PSI to launch it 31.4 meters. The barrel of the air cannon is 25 inches.

- Relevant Equations
- range of a projectile

Hi - I built an air cannon to launch a fishing lure for my science fair project. The air cannon launched a 1/4 oz lure 31.4 meters. Based on this, I calculated the initial velocity to be 17.54 m/s using the formula for range of a projectile. I want to be able to launch the lure 38.5 meters. I am trying to figure out how much PSI I would need to launch it 38.5 meters. Does anyone know an equation I can use to predict this? I used 100 PSI to launch it 31.4 meters. The barrel of the air cannon is 25 inches.