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These systems are known as simple pulley systems because they use the same rope throughout the system. If the pulleys were attached with several different ropes (not one continuous rope), the system would be a complex pulley system.
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www.swe.org/iac/lp/pulley_03.html
www.swe.org/iac/lp/pulley_03.html
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Check Your Knowledge! Pulley Systems ... This rope and pulley system supports the 400 lb weight. How much tension in the rope is needed to hold the weight in equilibrium. ... (Check the correct answer.); 100 lb. 80 lb; 44.44 lb;
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www.swe.org/iac/LP/pulley_act.html
www.swe.org/iac/LP/pulley_act.html
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Pulley - Wikipedia, the free encyclopedia
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A pulley , also called a sheave or a drum, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain u...
en.wikipedia.org/wiki/Pulley
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Mechanical Advantage of a Pulley System ... Interpret the diagrams to find the mechanical advantage of each pulley system.
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library.thinkquest.org/CR0210120/MA%20of%20PS.html
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This site provides a wealth of technology information sheets for pupils and teachers ... Pulley systems are used when there is a need to transmit rotary motion. The diagram below shows a simple system comprised of two pulley wheels and a belt. It is a simple mechanical device to winch up and down a rope.
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www.technologystudent.com/gears1/pulley1.htm
www.technologystudent.com/gears1/pulley1.htm
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To calculate the effort required to lift the load we divide the load by the number of ropes (do not count the rope that goes to the effort). The image on the right shows a four pulley system. The person lifting the 200kg load experiences a pull equal to only 50kg (200kg/4).
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www.dynamicscience.com.au/tester/solutions/hydraulicus/...
www.dynamicscience.com.au/tester/solutions/hydraulicus/pulleys2.htm
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Java applet: Pulley system ... You can change the weight of the load and the hanging pulley(s) by using the appropriate boxes. Inputs higher than the spring scale limit (10 N) are automatically changed...
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www.walter-fendt.de/ph14e/pulleysystem.htm
www.walter-fendt.de/ph14e/pulleysystem.htm
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Now imagine that you add a pulley to the mix, as shown below: ... The following figure shows the arrangement after adding a second pulley: ... In this diagram, the pulley attached to the weight actually consists of two separate pulleys on the same shaft, as shown on the right. This arrangement cuts the force in half and...
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www.howstuffworks.com/pulley.htm
www.howstuffworks.com/pulley.htm
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There are SIX simple machines: ... 1. Pulley - How Stuff Works ... A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.
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www.mikids.com/Smachines.htm
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