Published March 2015 | Version v1
Journal article

Wind-influenced projectile motion

  • 1. Theoretical Physics Group, National Institute of Physics, University of the Philippines, Diliman, Quezon City 1101 (Philippines)
  • 2. Electrical and Electronics Engineering Institute, University of the Philippines, Diliman, Quezon City 1101 (Philippines)
  • 3. Philippine Science High School-Central Luzon Campus, Clark Free Port Zone, Angeles City, Pampanga 2009 (Philippines)

Description

We solved the wind-influenced projectile motion problem with the same initial and final heights and obtained exact analytical expressions for the shape of the trajectory, range, maximum height, time of flight, time of ascent, and time of descent with the help of the Lambert W function. It turns out that the range and maximum horizontal displacement are not always equal. When launched at a critical angle, the projectile will return to its starting position. It turns out that a launch angle of 90° maximizes the time of flight, time of ascent, time of descent, and maximum height and that the launch angle corresponding to maximum range can be obtained by solving a transcendental equation. Finally, we expressed in a parametric equation the locus of points corresponding to maximum heights for projectiles launched from the ground with the same initial speed in all directions. We used the results to estimate how much a moderate wind can modify a golf ball's range and suggested other possible applications. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0143-0807/36/2/025016

Additional details

Publishing Information

Journal Title
European Journal of Physics
Journal Volume
36
Journal Issue
2
Journal Page Range
[9 p.]
ISSN
0143-0807
CODEN
EJPHD4

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46042166
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
EQUATIONS; FUNCTIONS; PROJECTILES; TIME-OF-FLIGHT METHOD; TRAJECTORIES; VELOCITY; WIND