Question

Is stress a dimensions less and unit less quantity ?
Give an appropriate answer with explanation.

Thank you
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Answer 1

Answer:

no

Explanation:

stress = deforming force/ area

this means that stress =

[MLT^-2]/[L^2]

=[ML^-1T^-2]

Answer 2

Answer:

Strain is the ratio of change in dimensions of the body to the original dimensions. Because it is a ratio, it is a dimensionless quantity.