2020-02-25T07:16:23Z
http://oa.upm.es/cgi/oai2
oai:oa.upm.es:21447
2016-04-21T12:02:55Z
7374617475733D707562
7375626A656374733D6165726F6E617574696361
7375626A656374733D666973696361
747970653D61727469636C65
Influence of air drag on the optimal hand launching of a small, round projectile
Zufiria, J.A.
Sanmartín Losada, Juan Ramón
Aeronautics
Physics
Conditions leading to a maximum range for a small, round projectile, fired by hand, are discussed taking into account air drag and the dependence of the initial speed on the mass launched. Both the optimal angle of release for given projectile and initial speed, and the optimal radius for given density (i.e., among a bed of pebbles) are determined; an increase on the height of release is found
to always decrease the angle and increase the radius. The influence of the projectile mass on the optimal manner of launching is considered. The validity of the approximations used in the analysis is discussed. Results from very simple measurements show good agreement with theory.
E.T.S.I. Aeronáuticos (UPM)
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
1982
info:eu-repo/semantics/article
Article
American Journal of Physics, ISSN 0002-9505, 1982, Vol. 50
PeerReviewed
application/pdf
eng
info:eu-repo/semantics/openAccess
http://oa.upm.es/21447/