In a block and tackle rove to advantage, which part of the tackle leads through the moveable block?

In a block and tackle rove to advantage, which part of the tackle leads through the moveable block?

• A. The hauling part leads through the moveable block
• B. The standing part leads through the moveable block
• C. The rope passes around the fixed block
• D. The load attaches to the moveable block

Answer: (A)

In a block and tackle set up for advantage, the amount of force you can apply to lift the load comes from multiple rope segments that support the movable block. The part you haul on is threaded through the movable block, so as you pull, tension is transmitted through several strands that are attached to the block that’s connected to the load. This multiplies the upward force on the load: you apply a smaller pull, but the combined tension in all the supporting strands adds up to lift heavier loads. The other descriptions don’t create that same arrangement of multiple supporting strands through the movable block, and while the movable block is attached to the load, that’s not describing which rope part leads through it.

In a block and tackle set up for advantage, the amount of force you can apply to lift the load comes from multiple rope segments that support the movable block. The part you haul on is threaded through the movable block, so as you pull, tension is transmitted through several strands that are attached to the block that’s connected to the load. This multiplies the upward force on the load: you apply a smaller pull, but the combined tension in all the supporting strands adds up to lift heavier loads. The other descriptions don’t create that same arrangement of multiple supporting strands through the movable block, and while the movable block is attached to the load, that’s not describing which rope part leads through it.