Recent content by carguy454

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    Air pressure needed to launch 1 lb projectile at 100 ft/s

    1. My air supply will be able to handle it 2. I'm trying to get a rough estimate of how much pressure is needed, not accounting for friction.
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    Air pressure needed to launch 1 lb projectile at 100 ft/s

    What other information would I need to find the actual air pressure from the average air pressure?
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    Air pressure needed to launch 1 lb projectile at 100 ft/s

    Oops. Those decimals will get you get every time. That seems like an awfully low pressure though. You're sure I'm supposed to use slugs instead of lbs?
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    Air pressure needed to launch 1 lb projectile at 100 ft/s

    Ok. W=(1/2)(0.3)(10,000) W=1500 lbf * s^2 Assuming 5 ft barrel w/ 3 in diameter F=300 lbf*s^2 A=7.065 in^2 P~43 psi Is this right?
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    Air pressure needed to launch 1 lb projectile at 100 ft/s

    I am a high school physics student and am building an air cannon to study projectile motion for our end-of-year project. I am trying to figure out what air pressure I need to propel a 1 lb projectile 100 ft/s. Here's what I have so far. Let me know if I'm right or wrong. Thanks...
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