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J.Velasquez
 one year ago
Pulley system of 2 fixed pulleys and 2 movable pulleys lift a rock that has 300N weight a constant speed. If effort used to lift rock is 100 N, what is the mechanical advantage of the system? 1/3, 3/4,3, or 6? I think 3.
J.Velasquez
 one year ago
Pulley system of 2 fixed pulleys and 2 movable pulleys lift a rock that has 300N weight a constant speed. If effort used to lift rock is 100 N, what is the mechanical advantage of the system? 1/3, 3/4,3, or 6? I think 3.

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oOKawaiiOo
 one year ago
Best ResponseYou've already chosen the best response.0Count the number of parallel attached to the lowest pulley. Thats the mechanical advantage

E.ali
 one year ago
Best ResponseYou've already chosen the best response.1The 3 is true because the Mechanical advantage Formula is that the R/E means 300/100 = 3 . it is so easy .
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