What is the mechanical advantage of tackle...

Question 1 of 3104866636ee728f7522a1c51813f

What is the mechanical advantage of tackle number 10 as shown in illustration D029DG below?

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Question 1 of 31048

What is the mechanical advantage of tackle number 10 as shown in illustration D029DG below?

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🔍 Key Concepts

• Mechanical advantage of tackle is usually the number of rope parts directly supporting the moving block (or load). • In a compound tackle, the total mechanical advantage is the product of the mechanical advantage of each individual tackle. • The hauling part location and direction (from fixed or moving block, up or down) can change the count by one in some rigs (rove to advantage vs. disadvantage).

💭 Think About

• Look closely at tackle number 10 and count how many rope segments are actually holding up the lower block that carries the weight. • Decide whether tackle 10 is a single tackle or two tackles working together; if it is compound, find the mechanical advantage of each section first, then combine them. • Check whether the hauling part comes off the fixed block or the moving block, and think about how that affects the effective mechanical advantage.

✅ Before You Answer

• Carefully count all the parts of line attached to the moving block(s) and make sure you are not double‑counting any hidden passes behind the sheaves. • Identify where the standing part is secured (fixed block or moving block) and where the hauling part exits, as this can change the final count by one. • Before picking an answer, confirm that your final mechanical advantage is consistent with both the number of sheaves in each block and whether the system is simple or compound.