A distributed force below covers a span of $4$ m as shown below. It comprises of $2$ parts: a nonuniformly distributed load from A to B and a uniformly distributed load from B to C $.$ Determine the total force and the total moment about point O caused by this distributed force, where O is $0\mathrm{.}5$ m to the right$-$hand side of the end of the force as shown in the picture. Please note that, the nonuniformly distributed load varies linearly and if we set origin $)=(0m$ at point A $,$ the magnitude of this distributed load, $w,$ can be described as $w=250\frac{x}{3}kN.$m$,$ where x varies between $0$ m to $3$ m $.$