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a puppy tugs with a force of 45n to pull a rope on a pulley. this lifts his 90n bag of dog food what the
a puppy tugs with a force of 45n to pull a rope on a pulley. this lifts his 90n bag of dog food what the mechanical advantage of the pulley
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Physics Olympiad - Basic To Advanced Exercises
Authors: The Committee Of Japan Physics Olympiad Japan
1st Edition
981455667X, 9789814556675
