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Question
Select the correct alternative:
A pulley is used because of it
Options
has the mechanical advantage greater than one
has 100% efficiency
helps to apply the force in a convenient direction
requires more effort to raise a less load.
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Solution
helps to apply the force in a convenient direction
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RELATED QUESTIONS
A block and tackle system has V.R. = 5.
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In a single fixed pulley, the velocity ratio is always more than the mechanical advantage.
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change the direction of force applied.
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