The problem is asking us to draw a free body diagram for the box which we already did then to determine the resultant force that acts on the box the acceleration that the box has as a result and the normal force that the surface exerts on the box.
Floor pulls on rough surface.
The amount of friction between your feet and the floor surface determines how well you can slide.
This will expose the subfloor underneath which is where most leveling problems lie.
Use a pry bar to pull up hardwood floors one section at a time or unfasten carpet or laminate and roll it up from one end.
How to prepare a floor for peel stick tile.
A heavy box is to be dragged along a rough horizontal floor.
We know the mass of the box 5 0 kg and bob s pull 100 n at 15 angle with the horizontal.
Peel and stick tile has come a long way since the days when it was a cheap and easy if not very attractive way to give old floors new life.
Floor buckling is the most extreme reaction to moisture in a hardwood floor.
Fortunately this is not a common occurrence.
Buckling occurs when the wood flooring actually pulls up from the subfloor lifting several inches in one or more places.
Some combinations of surfaces such as socks on a wooden floor produce very little friction.