A block and tackle system has 6 pulleys. If the efficiency of the machine is 60%, determine its mechanical advantages
- 12.0
- 10.0
-
3.6
- 1.8
The correct answer is: C
Explanation
M.A = \(\frac{Z \times V.R}{100}\)
= \(\frac{60 \times 6}{100}\) = 3.6