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Ladder leaning against the wall, that we dont want to fall down
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Jan21-10, 07:16 AM
ladder is leaning against the wall.
There is friction between ladder and wall - f1
and there is friction between ladder and ground - f2
what is the minimal angle between ladder and ground that ladder doesn't fall down.
I though it's easy, but then i realized it's not only about force - it's also about "circle motion" (you know what i mean). I dont know hot to solve it.
tell me if my description itn's clear so i'll make picture.
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