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Cathy, a 460-N actress playing Peter Pan, is hoisted above the stage in order to "fly" by a stagehand pulling with a force of 60. N on a rope wrapped around a pulley system. What is the actual mechanical advantage of the pulley system?

Respuesta :

Answer:7.67

Explanation:

Given

Weight of Cathy [tex]W_1=460\ N[/tex]

Force exerted by rope [tex]F=60\ N[/tex]

Mechanical advantage is the ratio of load by Pulling effort      

[tex]M.A.=\frac{Load}{Pulling\ effort}[/tex]

[tex]M.A.=\frac{460}{60}[/tex]

[tex]M.A.=7.67\ N[/tex]

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