Question

an iron wire of length 4 metres and diameter 2 millimetre is loaded with the weight of 8 kgs if the Young's modulus for iron is 2 into 10 power 11 Newton metre per minus 2 then the increase in length of the wire​

Answer 1

Answer:

Explanation:

Length=4cm ,diameter=2mm,radius=1mm,weight =8kg,

Added iron is 2×10 power

Force is equal to 11 per 2

So,first area =3.14

Then added radius is equal

So then 2x22/7x1x1mm

Ans is equal to 3.14×2=6.28

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