tomstanton
patreon
102mph tennis ball
🕑 Added 2018-07-04 17:39:45 +0000 UTC 164km/hShot with 1/4000 shutterspeed
Comments
Are the plans for the trebuchet available anywhere? I'm looking to build this with my son's Cub Scout den, and having a "known working" design would be a big head start!
Tom Stanton
It does change due to mass being a factor in the gravitational potential energy to kinetic energy transfer. But tennis balls and golf balls are so similar in weight that it doesn't make a noticeable difference in comparison to the drag variation.
U.S. Water Rockets
Does the velocity change depending on the mass of the projectile (within reason), or is it mostly dictated by the geometry of the trebuchet?
Alistair Campbell
That'll get you over a moat and castle wall, no worries!
Tom Stanton
Yep, unfortunately tennis balls seem to have a high amount of drag, so it decelerates very quickly, only landing 50-60m away. A golf on the other hand tops out at 150-180m!
U.S. Water Rockets
Did you find where it went?
Oh wow awesome! Nice photo Tom! Can't wait for the vid
Tim Hasak
btw thanks for metric conversion
Tim Hasak
102 mph?? I can`´`t wait for your video!
Tom Stanton
Thanks Jeff!
Jeff LaHay
Nice photo capture Tom!
