Asked by Albert

a pulley system having 5 pulleys is used to raise a 450N load. find the mechanical advantage and hence the effort if the efficiency is 75%
Answered by R_scott
5 pulleys means 4 lines lifting the load ... a 4:1 mechanical advantage

ideally , the effort is ... 450N / 4

with 75% efficiency ... 450N / (4 * .75)
Answered by Darlington
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Answered by Seth
Amoah
Answered by Seth
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