Pulley

A fixed rope with a load is mounted on wheels with a diameter of 40 cm. Calculate how far the load is lifted when the wheel turns seven times.

Final Answer:

d =  8.8 m

Step-by-step explanation:

$$\begin{gathered} D=40/100=\frac{2}{5}=0.4\text{m} \\ r=D/2=0.4/2=\frac{1}{5}=0.2\text{m} \\ o=2\pi \cdot r=2\cdot 3.1416\cdot 0.2\doteq 1.2566\text{m} \\ d=7\cdot o=7\cdot 1.2566=8.8\text{m} \end{gathered}$$

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