- #1
terryds
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Homework Statement
http://www.sumoware.com/images/temp/xzmbharheaqshjjf.png
A homogeneous stick with mass M is placed in a well with smooth surface (see picture). θ is the angle between the stick and the floor.
Determine the force the well gives to the stick.
Homework Equations
ΣF = 0
Στ = 0[/B]
The Attempt at a Solution
I draw the free body diagram but I'm not sure
http://www.sumoware.com/images/temp/xzgemxpxlpjnkafk.png
The first body-diagram has normal force 1 is perpendicular to the surface (like common ladder problem)
or
http://www.sumoware.com/images/temp/xzjmplgoxrepcxct.png
The second body diagram has normal force 1 is up-left in direction. I think it's because the stair push the wall down-right, it must give the reaction in opposite direction.
?
Which one is correct ? The first one or the second one ?
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