A block and tackle system has 6 pulleys. If the efficiency of the machine is 60%, determine its mechanical advantages
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Correct Answer: Option C
Explanation:
M.A = \(\frac{Z \times V.R}{100} = \frac{60 \times 5}{100} = 3.6\)
M.A = \(\frac{Z \times V.R}{100} = \frac{60 \times 5}{100} = 3.6\)