Discussion on: Problem 536 | Friction on Wedges
Following is a discussion on the Reviewer item titled: Problem 536 | Friction on Wedges. Feel free to add your own comments!
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#536 Friction Wedge
How do you know where to exactly put or locate R (reaction)? Is there a rule?
Re: #536 Friction Wedge
In reply to #536 Friction Wedge by Benjamin_Molina
R is the resultant of normal reaction N and the friction force f. The direction of R depends on the the direction of friction. Friction is the component of R parallel to the plane of contact.
The figure below below shows R for friction directed down the plane of contact.
If the friction force is directed up the plane, then R would be as shown below.
I hope that cleared you up.
Re: #536 Friction Wedge
In reply to Re: #536 Friction Wedge by Jhun Vert
Thank you so much Engr. Verterra. That was a big help.
Re: Discussion on: Problem 536 | Friction on Wedges
why is it that B has friction force when it is stated in the problem that B is at rest?
Re: Discussion on: Problem 536 | Friction on Wedges
In reply to Re: Discussion on: Problem 536 | Friction on Wedges by John Luigi
why is it that the floor has friction force when it is at rest?