Pulley lab physical science lab

timer Asked: May 15th, 2015
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Question Description

how does the mechanical advantage of a pulley system change when increaIng the number of pulleys?

Tutor Answer

School: Boston College

when one increases the number of pulleys the system efficiency decreases since each of the pulleys lose a certain amount of force due to friction. It is therefore typical that systems use multiple pulleys since a single fixed pulley provides little mechanical advantage.

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