Homework Help: Physics

Posted by Mike on Monday, February 13, 2012 at 1:22pm.

You are holding a bulletin board weighing 6.46 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this force be if the coefficient of static friction with the wall is 0.43?

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