Question

Chapter 2, Problem 2/036 Multistep A man exerts a force F on the handle of the stationary wheelbarrow at A. The weight of the wheelbarrow along with its load of dirt is 120 lb with center of gravity at G. For the configuration shown, what force F must the man apply at A to make the net moment about the tire contact point B equal to zero? 54 23 23" 45" 9"

Answer 1

For the net moment at the tire contact point B to be zero, the moments about B due to weight of dirt and and force on handle need to be balanced.

So, equate sum of moments about B=0 and solve for value of F

4 Fcos9 231 23:54 2 ずー38-655 F±1020 。