Which of the following correctly defines the terms stress, strain and Young modulus?
1 )
stress: (force) x (area) , strain: (extension) x (original length) , Young modulus: (stress) / (strain)
2 )
stress: (force) x (area) , strain: (extension) / (original length) , Young modulus: (stress) x (strain)
stress: (force) / (area) , strain: (extension) / (original length) , Young modulus: (stress) / (strain)
4 )
stress: (force) / (area) , strain: (extension) x (original length) , Young modulus: (stress) x (strain)
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