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A person uses a fixed pulley to raise a 75-N object 40 m.
Asked by: zacsgirl0213
from ROME, Italy
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i am finishing the question.....
The force exerted on the object is 120-N. What is the efficiency of the pulley?
The force exerted on the object is 120-N. What is the efficiency of the pulley?
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% Efficiency= Work(output)*100/Work (Input)
% Efficiency= = 75*40*100/40*40= 187.5%
% Efficiency= = 75*40*100/40*40= 187.5%
Answer Date: 10:39pm 12/14/07
