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hisiks

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- Homework Statement
- A uniform sign of weight W and width 2L hangs from a massless horizontal beam, hinged at the

wall and supported by a cable. (a) Determine the tension in the cable. (b) Determine the

components of the reaction force at the hinge in terms of W, L, d and ϴ (c) Find the minimum

possible friction force between the hinge and the wall that will allow this set-up in terms of W, L,

d and ϴ assuming that the hinge is not attached to the wall mechanically

- Relevant Equations
- Sum of Torques = 0

Sum of Forces = 0

Trig Equations

F=ma

Torque = Fdcos theta

Attempted creating equations for zeros of torque and components of forces in x and y as seen in picture. Got lost with having only variables and the d & 2L for the length of the beam. Not sure how to do the question with two points of contact between the beam and the sign. Is the center center of mass changed because of that and/or what's the distance I use for that part?