Amrita Asked a Question
October 23, 2020 8:41 ampts 10 pts
1/Thickness of a bed is changed from 47.42 cm to 45.56cm after strain. Find the extension and stretch of the bed along the strain axis.
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  • Rahul pandey
    Extension = (Final length - Initial length) / initial length = -1.86/47.42 = -0.039 Stretch= 1+extension = 1-0.039= 0.961 Refer to the attached figure for the formula.
    • cropped4164440712463674873.jpg
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  • Sajan sarthak sahoo thankyou
    Extension is the( final - initial) so 45.56-47.42= -1.86 so here negative extension means compression Stretch is final /initial 45.56/47.42=0.960
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    Amrita
    but I think formula of stretch is final-initial/initial