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Static Equlibrium

  • #1
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Homework Equations



Ʃτ = 0
ƩF = 0


The Attempt at a Solution



summing the torques for each piece, i found

Ʃτ = MgLsin(90-ψ) - mgIsin(ψ) = 0

MgLsin(90-ψ) = mgIsin(ψ)

ML/mI = sin(ψ)/sin(90-ψ) = sin(ψ)/cos(-ψ) = tan(ψ)

so ψ = tan-1(ML/mI)

i don't know if this is correct or not...

and I have no idea how I could find the angle without considering torque. any help is appreciated. thanks :)
 

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Answers and Replies

  • #2
Simon Bridge
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i don't know if this is correct or not...
How could you go about checking it?

and I have no idea how I could find the angle without considering torque.
I don't think you can. But you can do it without directly considering torque by using a result - like the lever equation.
 

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