What is the mechanical advantage of tackle...

Question 1 of 3104866636ee728f7522a1c518140

What is the mechanical advantage of tackle number 11 as shown in illustration D029DG below?

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Question 1 of 31048

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What is the mechanical advantage of tackle number 11 as shown in illustration D029DG below?

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🔍 Key Concepts

• Count the number of supporting parts of line actually lifting the weight in tackle #11 • Remember that the standing part (where the line is made fast) may or may not add to mechanical advantage, depending on where it is secured • Distinguish between number of sheaves and number of line segments sharing the load

💭 Think About

• How many separate segments of rope are directly attached to or passing through the moving block that supports the weight? • Is the hauling part (where you pull) attached to the moving block or the fixed block, and how does that affect the count of supporting parts? • Compare tackle #11 with an adjacent, simpler tackle in the illustration and see how the pattern of mechanical advantage increases as more parts of line are added

✅ Before You Answer

• Carefully trace the rope path in tackle #11 and count each loaded segment that is helping hold up the movable block • Verify whether the standing end of the line is secured to the fixed structure or to the moving block; adjust your mechanical advantage count accordingly • Confirm that you are NOT just counting total sheaves; you must count load‑bearing line segments supporting the weight