Question 2113Deck General70% to pass
What is the mechanical advantage of tackle number 3 as shown in illustration D029DG below?
AI Explanation
The correct answer is C) 3.
The mechanical advantage of a tackle is determined by the number of parts of the rope that support the load. In the illustration D029DG, tackle number 3 has 3 parts of the rope supporting the load, which gives it a mechanical advantage of 3.
The other answer choices are incorrect because:
A) 1 - This would be the mechanical advantage of a single fixed pulley, not a 3-part tackle.
B) 2 - This would be the mechanical advantage of a 2-part tackle.
D) 4 - This would be the mechanical advantage of a 4-part tackle.
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