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Introductory Physics Homework Help
Reaction force on a leaned beam
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[QUOTE="Karol, post: 4990321, member: 20512"] [h2]Homework Statement [/h2] A beam of 12[kN] is on a smooth floor on one side and on a rough edge on the other. The total length of the beam is 10[m]. What is the reaction on the edge. [h2]Homework Equations[/h2] Moments (torque): F[SUB]1[/SUB]L[SUB]1[/SUB]=F[SUB]2[/SUB]L[SUB]2[/SUB] [h2]The Attempt at a Solution[/h2] I drew the forces. the reaction on the floor is vertical and also on the edge since there aren't horizontal forces. Moments around point A: $$12[kN]\cdot 5\cdot \cos 30^0=R\cdot\frac{4[m]}{\tan 30^0}\rightarrow R=7.5[kN]$$ In the book it's 6.5, i think it's a mistake [/QUOTE]
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Introductory Physics Homework Help
Reaction force on a leaned beam
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