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

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10 kg

20 kg

40 kg

35 kg

answer is B.

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Detailed Solution

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.

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