File:Four pulleys.svg
|
 |
This image was selected as picture of the day on Wikimedia Commons for 24 March 2008. It was captioned as follows: English: Pulley diagram with 4 pulleys Other languages:
Afrikaans: Katrolhefbome skematies voorgestel in vier konfigurasies Asturianu: Un diagrama amosando cuatro menes d'aperiar les polees. D'izquierda a drecha, amuésase que la fuercia pa allevantar la mesma masa, amenorga según s'amesten más polees. Bosanski: Dijagram sa četiri kotura. Dansk: Diagram over fire forskellige taljer. Deutsch: Diagramm verschiedener Flaschenzüge English: Pulley diagram with 4 pulleys Español: Un diagrama mostrando cuatro tipos de poleas. De izquierda a derecha, para una misma masa (peso) la fuerza ejercida para levantarla disminuye. Euskara: Poleen diagrama. Hrvatski: Dijagram kolotura s četiri kolotura. Italiano: Diagramma con carrucole multiple. Magyar: Csigasor diagram 4 csigával Nederlands: Katroldiagram met vier katrollen Polski: Diagram z czterema wielokrążkami. Português: Um diagrama mostrando quatro tipos de arranjos de polias. Sendo que da esquerda para a direita para uma mesma massa (peso) a força exercida para ergue-la diminiu. Suomi: Kaaviokuva neljästä taljasta Svenska: Illustration av hur block och taljor fungerar. Беларуская: Схема працы блокаў і паліспастаў. मराठी: कपी पध्दत रेखाचित्र चार कपी दर्शवीत. 한국어: 4개의 도르래가 있는 그림. 日本語： 4つの滑車図形 中文： 四滑轮图解 中文（繁體）： 四滑輪圖解 العربية : مخطّط بكرة بـ 4 بكرات |
Summary
| Description |
العربية: أربع أمثلة مختلفة لأنظمة الحبل والبكرة.
English: Pulley diagram with 4 pulleys.
Suomi: Kaaviokuva neljästä taljasta.
中文： 四滑轮图解。这是一个理想状态。实际上每增加一个滑轮都会增加滑轮组自重，同时也带来更大的摩擦阻力。
Nederlands: Katroldiagram met vier katrollen
Español: Diagrama de 4 poleas.
Deutsch: Flaschenzugdiagramm mit vier Flaschenzügen. |
| Date | |
| Source | Own work |
| Author | Prolineserver, Tomia (minor edits by Stanisław Skowron, scale adjusted by Atropos235) |
| Other versions |
Derivative works of this file: Four pulleys FH.svgCategory:Files with derivative versions Pulleys.svg, Three pulleys.svg |
| SVG development | Category:Valid SVG created with Inkscape:Diagrams#Four%20pulleys.svg  Category:Translation possible - SVGThis diagram uses embedded text that can be easily translated using a text editor. |
Summary
- FZ = Rope tension or effort force
- FL = Load or resistance force
- s = Rope displacement (distance pulled) or effort distance
- h = Height (distance load is raised) or resistance distance
An illustration showing how pulleys are used to obtain a mechanical advantage. Using additional pulleys decreases the force required but increases the distance required to raise a load the same amount. In each instance here the mechanical work done is the same, work being the product of force and distance.
- FZ × s = FL × h
- 10 cm × 100 N = 10 J
- 20 cm × 50 N = 10 J
- 30 cm × 33 1/3 N = 10 J
- 40 cm × 25 N = 10 J
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
 |
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
   |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
| ||
| This licensing tag was added to this file as part of the GFDL licensing update. |
This file is licensed under the Creative Commons Attribution 2.5 Generic license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
You may select the license of your choice.
Category:CC-BY-2.5
Category:CC-BY-SA-3.0-migrated
Category:Displacement
Category:Featured pictures on Wikimedia Commons
Category:Featured pictures on Wikimedia Commons - vector
Category:Featured pictures on Wikipedia, Arabic
Category:Featured pictures on Wikipedia, Chinese
Category:Featured pictures on Wikipedia, English
Category:Featured pictures on Wikipedia, German
Category:Featured pictures on Wikipedia, Persian
Category:Featured pictures on Wikipedia, Turkish
Category:Files by Holger Motzkau
Category:Files with derivative versions
Category:Force-distance diagrams
Category:GFDL
Category:License migration redundant
Category:Pictures of the day (2008)
Category:Pulley force diagrams
Category:SVG created with Inkscape:Important
Category:Self-published work
Category:Tension vector
Category:Translation possible - SVG
Category:Valid SVG created with Inkscape:Diagrams