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.
|Register to reply|
|Ladder leaning against a vertical wall.||Classical Physics||3|
|Finding a friction force (ladder leaning against a wall...)||Introductory Physics Homework||3|
|Ladder leaning against a wall||Introductory Physics Homework||4|
|Ladder against wall - what is friction needed to prevent ladder from slipping||Introductory Physics Homework||4|
|Leaning ladder||Introductory Physics Homework||7|