dc.creator |
Carl E. Mungan |
|
dc.creator |
Trevor C. Lipscombe |
|
dc.date |
2011-06-01T00:00:00Z |
|
dc.date.accessioned |
2015-07-20T22:07:36Z |
|
dc.date.available |
2015-07-20T22:07:36Z |
|
dc.identifier |
1870-9095 |
|
dc.identifier |
https://doaj.org/article/f3bfc20fa02044e58c01a79c02f580da |
|
dc.identifier.uri |
http://evidence.thinkportal.org/handle/123456789/11343 |
|
dc.identifier.uri |
https://doaj.org/article/f3bfc20fa02044e58c01a79c02f580da |
|
dc.description |
A child takes a running start, grabs hold of the free-hanging end of a rope at the edge of a water hole at x 0 , swings upward, and lets go of the rope at some point, flying freely through the air until he lands in the water at x R . For small initial speeds, the maximum range R is obtained by releasing the rope just short of its turning point and dropping almost straight down into the water from rest. On the other hand, as a child’s running speed gets larger and larger (compared to the square root of the product of the length of the rope and earth’s gravitational field), the rope should bereleased at an angle of about / 4 to maximize the range. That is, the optimum trajectory of a child is dominated by pendulum motion at low running speeds and by projectile motion at high initial speeds |
|
dc.language |
English |
|
dc.language |
Spanish |
|
dc.language |
Portuguese |
|
dc.publisher |
Instituto Politécnico Nacional, Latin American Physics Education Network |
|
dc.relation |
http://www.lajpe.org/june11/1_LAJPE_495_Carl_Mungan_Preprint_corr_f.pdf |
|
dc.relation |
https://doaj.org/toc/1870-9095 |
|
dc.source |
Latin-American Journal of Physics Education, Vol 5, Iss 2, Pp 335-337 (2011) |
|
dc.subject |
Pendulum |
|
dc.subject |
projectile |
|
dc.subject |
maximum range |
|
dc.subject |
numerical solution |
|
dc.subject |
Special aspects of education |
|
dc.subject |
LC8-6691 |
|
dc.subject |
Education |
|
dc.subject |
L |
|
dc.subject |
DOAJ:Education |
|
dc.subject |
DOAJ:Social Sciences |
|
dc.subject |
Special aspects of education |
|
dc.subject |
LC8-6691 |
|
dc.subject |
Education |
|
dc.subject |
L |
|
dc.subject |
DOAJ:Education |
|
dc.subject |
DOAJ:Social Sciences |
|
dc.subject |
Special aspects of education |
|
dc.subject |
LC8-6691 |
|
dc.subject |
Education |
|
dc.subject |
L |
|
dc.subject |
Special aspects of education |
|
dc.subject |
LC8-6691 |
|
dc.subject |
Education |
|
dc.subject |
L |
|
dc.subject |
Special aspects of education |
|
dc.subject |
LC8-6691 |
|
dc.subject |
Education |
|
dc.subject |
L |
|
dc.title |
Swinging over the water hole |
|
dc.type |
Article |
|