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Unread 10-01-2006, 13:16
KenWittlief KenWittlief is offline
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Re: How will FIRST measure muzzle velocity?

Quote:
Originally Posted by Kevin Sevcik
The "best angle" still appears to be near 45 degrees. I've made up a spreadsheet that roughly accounts for air resistance and I'm still getting the best range at around 43 degrees. Definitely not 30 degrees. However, my spreadsheet also doesn't think 35 feet is possible at 30 degrees, so make of that what you will. This is, of course, completely theoretical. We're going to cobble together a prototype in a day or two and see what that says.
wow! did you use a differential equation for the air resistance in the spread sheet? I'm lucky if I can set up Excel to sum a column of numbers and get the right results!

Like most things in the real world projectile motion in air is nonlinear. Even with differential equations the best we can do is approximate it.