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. σbreaking  is a characteristic property of material of wire and is independent of length or breadth (dimensions) of the wire.W1A1=W2A2The maximum load that can sustain is independent of length  of the wire.