Wheelbarrow Force Analysis

camino

1. The problem statement, all variables and given/known data

Where is the best place to arrange most of the logs in a wheelbarrow so that it minimizes the amount of force on the backbone of the person transporting the load?

2. Relevant equations

Moment = Fd or r x F

E.O.E:
Sum of Fx = 0, Sum of Fy = 0, Sum of Fz = 0.
Sum of Mx = 0, Sum of My = 0, Sum of Mz = 0.

3. The attempt at a solution

This is basically just a force analysis problem with no weight or dimensions given. Any help would be appreciated.

tiny-tim

Hi camino!

The force on the backbone is just the extra force on the feet.

So what will that be related to?