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What do Pulleys do?

posted Dec 10, 2017, 4:48 PM by Barbara Fortunato   [ updated Dec 18, 2017, 10:38 AM ]
5: W 12/13, 7: W 12/13

QUIZ on projectile motion, boat problems, and airplane problems TODAY!
 
Then, we'll look at what a pulley does... basically it changes the direction of the force.  Here, we'll start looking at Newton's 2nd Law problems with more than one object in the system.  We'll have to write a ΣF statement for each object as well as the total system.
 
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