Kinesiology 2241A/B Lecture Notes - Lecture 26: Yellow Jacket, The Fluid, Trailing Edge

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Thomas Richard Jenkyn

Document Summary

Drag force: as we covered in the last lecture, most of the activities was do are done surrounded by air. And those a(cid:272)ti(cid:448)ities that are(cid:374)(cid:859)t do(cid:374)e i(cid:374) the air are do(cid:374)e i(cid:374) the (cid:449)ater: both air and water are fluids. Water is, of course, denser than air: whenever we move through a fluid, the fluid applies a drag force that slows our motion done, geese fly in v formation due to air drag. Goose in the front works the hardest breaking the air while the other ones fall in behind. They are drafting: drag is always negative (working against you, when moving slowly, drag is negligible, when moving fast, drag is high. If the fluid is moving to the side (i. e. a sidewind) as well as in a headwind or tailwind, then there is a lateral (cid:272)o(cid:373)po(cid:374)e(cid:374)t to the fluid (cid:448)elo(cid:272)ity that the o(cid:271)je(cid:272)t (cid:858)feels(cid:859). So the drag for(cid:272)e is a(cid:374)gled relati(cid:448)e to the o(cid:271)je(cid:272)t(cid:859)s pathway.