Chapter 7, Problem 30P

The force in Fig. 7.14a is given by ${\stackrel{\to }{F}}_a=F_o\hat{J}$, where F₀ is a constant. The force in Fig. 7.14b is given by ${\stackrel{\to }{F}}_b=F_o\left(x/a\right)\hat{J}$, where the origin is at the lower left corner of the box, a is the width of the square box, and x increases horizontally to the right. Determine the work you would have to do to move an object around the perimeter of each each box, going clockwise at constant speed, starting at the lower left corner.