Dragging a string over a step

dc.creator	Roberto De Luca
dc.date	2012-03-01T00:00:00Z
dc.date.accessioned	2015-08-12T11:20:44Z
dc.date.available	2015-08-12T11:20:44Z
dc.identifier	1870-9095
dc.identifier	https://doaj.org/article/92758f4ebc81460784189357e522e465
dc.identifier.uri	http://evidence.thinkportal.org/handle/123456789/28483
dc.description	A simple problem in Newtonian mechanics is considered. The problem consists in finding the maximum value of the length xUP of the portion of string slowly dragged on a step of height h, when the string itself is initially placed to match the vertical profile of the step, the remaining part lying on the ground and the final portion being in static equilibrium during the dragging process. A straightforward analysis is required to find the solution. The problem can be proposed in a lecture or a demonstration in class on the role played by the coefficient of static friction in mechanics.
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/mar12/8_LAJPE_586_Roberto_de_Luca_preprint_corr_f.pdf
dc.relation	https://doaj.org/toc/1870-9095
dc.source	Latin-American Journal of Physics Education, Vol 6, Iss 1, Pp 39-42 (2012)
dc.subject	Classical Mechanics teaching
dc.subject	static coefficient of friction
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	Dragging a string over a step
dc.type	article