Disregarding friction, what is the...

Question 1 / 2066636ee728f7522a1c5179c8

Question 1 of 2066636ee728f7522a1c5179c8

Disregarding friction, what is the mechanical advantage of a twofold purchase when rove to disadvantage?

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Question 1 of 20

66636ee728f7522a1c5179c8

Disregarding friction, what is the mechanical advantage of a twofold purchase when rove to disadvantage?

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🔍 Key Concepts

• Mechanical advantage (MA) of tackles (purchase systems) and how it relates to number of parts of line supporting the moving block • Difference between rove to advantage and rove to disadvantage in block and tackle systems • How to analyze a twofold purchase (two double blocks) by counting the line segments sharing the load

💭 Think About

• Sketch or visualize the two double blocks and trace the line as it is rove. How many segments of line are actually lifting the moving block? • Ask yourself: in a system rove to disadvantage, is the hauling part attached to the moving block or the fixed block, and how does that change the effective mechanical advantage? • Compare what the MA would be for the same tackle if it were rove to advantage, then adjust for the disadvantage case.

✅ Before You Answer

• Carefully count only the line segments that directly support the moving block; do not count dead ends that are fixed • Confirm whether the hauling part is coming off the fixed block or the moving block in a rove-to-disadvantage arrangement • Verify that you are ignoring friction and sheave efficiency, using only the ideal, theoretical mechanical advantage

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Question 1 of 20

Disregarding friction, what is the mechanical advantage of a twofold purchase when rove to disadvantage?

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Question 1 / 2066636ee728f7522a1c5179c8

Question 1 of 2066636ee728f7522a1c5179c8

Disregarding friction, what is the mechanical advantage of a twofold purchase when rove to disadvantage?

Back

Question 1 of 20

66636ee728f7522a1c5179c8

Disregarding friction, what is the mechanical advantage of a twofold purchase when rove to disadvantage?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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