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A load of 20 kg is hung from one end of ...

A load of 20 kg is hung from one end of a wire of length 6 m and of cross sectional area `1mm^2`. IF the load is withdrawn, the length of the wire becomes 5.995 m. Calculate the (i) longitudinal strain, (ii) longitudinal stress and (iii) Young's modulus for the material of the wire.

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The correct Answer is:
(i) 0.000834 (ii) `1.96 times 10^8 N.m^-2` (iii) `2.35 times 10^11 N.m^-2`
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CHHAYA PUBLICATION-ELASTICITY -EXERCISE ( Problem Set-I)
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  2. What will be the increase in length of a steel wire of length 10 m and...

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  3. A load of 20 kg is hung from one end of a wire of length 6 m and of cr...

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  4. When a load of 3 kg is hung from one end of a copper wire of length 2 ...

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  6. Cross sectional area of a steel wire is 1 cm^2.How much force is requi...

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  8. Young's modulus for the material of a substance is 7.25 times 10^10 N....

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  9. What will be the increase in length of a wire of length 10 m undergoin...

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  10. Calculate the change in length of a wire of length 5 m undergoing a st...

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  18. A metallic wire of length and diameter 300 cm and 0.1 cm. respectively...

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  20. When a load of 20 kg is hung from a wire of cross sectional area 1mm^2...

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