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Physics 10 Online
OpenStudy (isabel☺):

please help me find the moment of force F = 450 lb about point b

OpenStudy (isabel☺):

consider that each box is measured 1'. and F = 450 lb

OpenStudy (theeric):

Hi! Do you have an understanding of the diagram, or problem, to start with?

OpenStudy (theeric):

Haha, I will try! :) Do you know what moment of force is? What it means for an object?

OpenStudy (theeric):

Are you there?

OpenStudy (isabel☺):

assuming clockwise moments as positive i do understand why |dw:1405847685320:dw| but i don't understand how they got this |dw:1405847820253:dw|

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