A person pushes a fully loaded $25\mathrm{.}25$ kg wheelbarrow at constant velocity along a ramp that makes an angle $21\mathrm{.}0$ degrees with the horizontal. The load is distributed such that the center of mass of the wheelbarrow is exactly halfway along its length L$.$

Assume that the radius of the wheel is negligible and that the wheel rolls without slipping. The gravitational acceleration is g$=9\mathrm{.}81$ m$/$s$^2.$

What is the magnitude of the net force that the person must apply to keep the wheelbarrow parallel to the ramp?