A shelf bracket is mounted on a vertical wall by a single screw, as shown in Figure P12.59. Neglecting the weight of the bracket, find the horizontal component of the force that the screw exerts on the bracket when an F = 86.0 N vertical force is applied as shown.(adsbygoogle = window.adsbygoogle || []).push({});

Ok so we have three equations like usual with statics.

Forces in Y = 86N-Fb=ma

Forces in X = 0=ma

Torque=0 so (86)(.05)-(Fb)(.03)=0

Taking the point of rotation at the top right corner of the bracket, 3cm above the screw.

Fb=Force of the bracket

Or do you solve for Fb in the torque equation giving Fb=143.33 then find its X and Y components. The Y would be 86, then the X would be 57.33?

I guess what I am confused by is why there is an X force from the screw and how to find it

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# Homework Help: Bracket Problem

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