Kanter's 240+ throw and discus physics

[Bigblue86]

I never took high school phyics. Most likely why I was never able to throw past 53.00m in the discus. I din't have the correct angle/wind thingy going on. That an the Coriolis effect. Too many sector fouls if you ask me...sigh!

[La_Spigola_Loca]

However, casual observation (Andy Bloom or officials that do the marking????) is that the landing angle is less than this.

You probably mean, much more than this. The complementary angle, looking from the official's side, is much less than 45° (135° if we're talking from the ground, not from the perpendicular to the ground), and the angle of the discus plunging to the ground is far more than 45°.

[26mi235]

However, casual observation (Andy Bloom or officials that do the marking????) is that the landing angle is less than this.

You probably mean, much more than this. The complementary angle, looking from the official's side, is much less than 45° (135° if we're talking from the ground, not from the perpendicular to the ground), and the angle of the discus plunging to the ground is far more than 45°.

I had meant "flatter" than 45 but your comment about plunging makes a good statement for steeper than 45 degrees, in which case the added distance due to the landing being even one meter lower would be less than one meter. I do not know what the allow maximum slope is but I would guess that it amounts to a lot less than 1 meter out of 70.

[eldrick]

a possible definitive article is here :

http://www.madsci.org/posts/archives/19 ... .Ph.r.html

it's based on the article :

American Journal of Physics 49, 1125-1132 (1981)

a key quote is :

The interaction of lift, drag, and gravity upon the discus change the ideal angle of release for maximum range from the 45 degrees value of ideal projectiles to a value of somewhere between 30 and 40 degrees according to Frohlich. The lower angle produces an angle of attack that produces the most lift