A wire can sustain the weight of 20 kg before breaking. If the wire is cut into two equal parts, each part can sustain a weight of

The maximum load which a wire can sustain is a property of the material of wire and it depends on the cross-sectional area. ${\mathrm{\sigma }}_{\text{breaking }}$ is a characteristic property of material of wire and is independent of length or breadth (dimensions) of the wire.$\frac{W_1}{A_1}=\frac{W_2}{A_2}$

The maximum load that can sustain is independent of length  of the wire.