Up to this point, we have only looked at forces and moments in 2 dimensions. Adding the 3rd dimension complicates our calculations. We have to break the 3D problem into two 2D problems and analyze each separately.
Friction is a special case of static problems where the friction force depends on the types of surfaces in contact where the sliding will occur and the weight of the object to which a force is applied.
complete and submit the problems below
