A 5.0 x 10 2 N weight is hung from the end ofa wire of cross-sectional area 0.01

Question

A 5.0 x 102 N weight is hung from the end ofa wire of cross-sectional area 0.010 cm2 .
The wire stretches from its original length of 200.0 cm to 200.50cm..   a) What is the stress on the wire? b) What is the elongation strain on the wire? c) Determine the Youngs modulus of the wire: A 5.0 x 102 N weight is hung from the end ofa wire of cross-sectional area 0.010 cm2 .
The wire stretches from its original length of 200.0 cm to 200.50cm..   a) What is the stress on the wire? b) What is the elongation strain on the wire? c) Determine the Youngs modulus of the wire:

Explanation / Answer

given force F = 5.0*102 N area = a = 0.010cm2 =0.010*10-4m2 original length = L =200cm = 2m steched length = x = 200.5 - 200.0 = 0.5cm =0.5*10-2 m stress = F/A = ------Nm-2 elongation strain inthe wire = x/2= ----- young modulas = Y = F/A*L/x = --------- elongation strain inthe wire = x/2= ----- young modulas = Y = F/A*L/x = ---------

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