The pulley has a mechanical advantage of 3. Which statement is true?
a. a user would have to p...
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The pulley has a mechanical advantage of 3. Which statement is true?
a. a user would have to pull the rope 3 times further to lift the block
b. a user would have to do 1/3 the amount of work to lift the block
c. a user would have to use 1/3 of the force to lift the block
d. both a and c are correct
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Answers: 2
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