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Question

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


A
10kg
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B
20kg
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C
40kg
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D
80kg
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Solution

The correct option is B $$20kg$$
$$The$$ $$breaking$$ $$stress$$ $$in$$ $$each$$ $$part$$ $$of$$ $$the$$ $$wire$$ $$will$$ $$be$$ $$the$$ $$same$$ $$as$$ $$the$$ $$original$$ $$because$$ $$of$$ $$the$$ $$same$$ $$material.$$ $$Since$$ $$the$$ $$area$$ $$remains$$ $$the$$ $$same,$$ $$each$$ $$part$$ $$can$$ $$sustain$$ $$a$$ $$weight$$ $$of$$ $$20$$ $$kg.$$

Physics

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