A block and tackle system has 6 pulleys. If the efficiency of the machine is
PHYSICS
WAEC 2002
A block and tackle system has 6 pulleys. If the efficiency of the machine is 60%, determine its mechanical advantages
- A. 12.0
- B. 10.0
- C. 3.6
- D. 1.8
Correct Answer: C. 3.6
Explanation
M.A = \(\frac{Z \times V.R}{100} = \frac{60 \times 5}{100} = 3.6\)
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