written by
Gary Gladding
published by
the University of llinois Physics Education Research Group
This interactive homework problem presents the case of a ball thrown straight up in the air at an initial speed of 30 m/s. How fast would a person standing 70 meters away need to run to catch the ball just before it hits the ground? The problem is accompanied by a sequence of questions designed to encourage critical thinking and engage students beyond traditional textbook problems. The questions are user-activated and carefully crafted to guide beginning students through conceptual analysis before attempting the mathematics. It is part of a larger collection of interactive problems developed by the Illinois Physics Education Research Group.
<a href="https://www.compadre.org/introphys/items/detail.cfm?ID=6389">Gladding, Gary. Illinois PER Interactive Examples: Catch the Ball. Urbana: University of llinois Physics Education Research Group, June 16, 2006.</a>
G. Gladding, (University of llinois Physics Education Research Group, Urbana, 2006), WWW Document, (https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/01/ie_catch_the_ball).
G. Gladding, Illinois PER Interactive Examples: Catch the Ball (University of llinois Physics Education Research Group, Urbana, 2006), <https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/01/ie_catch_the_ball>.
Gladding, G. (2006, June 16). Illinois PER Interactive Examples: Catch the Ball. Retrieved March 15, 2025, from University of llinois Physics Education Research Group: https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/01/ie_catch_the_ball
Gladding, Gary. Illinois PER Interactive Examples: Catch the Ball. Urbana: University of llinois Physics Education Research Group, June 16, 2006. https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/01/ie_catch_the_ball (accessed 15 March 2025).
Gladding, Gary. Illinois PER Interactive Examples: Catch the Ball. Urbana: University of llinois Physics Education Research Group, 2006. 16 June 2006. 15 Mar. 2025 <https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/01/ie_catch_the_ball>.
@misc{
Author = "Gary Gladding",
Title = {Illinois PER Interactive Examples: Catch the Ball},
Publisher = {University of llinois Physics Education Research Group},
Volume = {2025},
Number = {15 March 2025},
Month = {June 16, 2006},
Year = {2006}
}
%A Gary Gladding %T Illinois PER Interactive Examples: Catch the Ball %D June 16, 2006 %I University of llinois Physics Education Research Group %C Urbana %U https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/01/ie_catch_the_ball %O text/html
%0 Electronic Source %A Gladding, Gary %D June 16, 2006 %T Illinois PER Interactive Examples: Catch the Ball %I University of llinois Physics Education Research Group %V 2025 %N 15 March 2025 %8 June 16, 2006 %9 text/html %U https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/01/ie_catch_the_ball
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