Nigerian Scholars » » A block and tackle system has 6 pulleys. If the efficiency of the machine i...

# A block and tackle system has 6 pulleys. If the efficiency of the machine i...

### Question

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

### Explanation:

M.A = $$\frac{Z \times V.R}{100} = \frac{60 \times 5}{100} = 3.6$$

## Dicussion (1)

• M.A = $$\frac{Z \times V.R}{100} = \frac{60 \times 5}{100} = 3.6$$