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Physics 22 Online
OpenStudy (anonymous):

Which of the pulleys needed the least amount of force to lift the weight? Answer a. combination b. 2nd class c. moving d. fixed please help my answer a. ????? Which of the pulleys needed the least amount of force to lift the weight? Answer a. combination b. 2nd class c. moving d. fixed please help my answer a. ????? @Physics

OpenStudy (anonymous):

What do you mean by 2nd class in b? 2nd class lever?

OpenStudy (anonymous):

Sorry cause I've never heard of a 2nd class pulley before. Perhaps it's combination.

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