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23 Nov 2019
Q1 . A copper wire has an unstretched length of 1.20 m and is 0.35mm in diameter.
When the wire hangs vertically from a fixed point supporting a loadof 2.0 kg it has an extension
of 2.2 mm.
Calculate
(a) the cross-sectional area of the wire
(b) the tension in the wire
(c) the stress in the wire
(d) the strain in the wire
(e) the Young modulus of copper
Q1 . A copper wire has an unstretched length of 1.20 m and is 0.35mm in diameter.
When the wire hangs vertically from a fixed point supporting a loadof 2.0 kg it has an extension
of 2.2 mm.
Calculate
(a) the cross-sectional area of the wire
(b) the tension in the wire
(c) the stress in the wire
(d) the strain in the wire
(e) the Young modulus of copper
Irving HeathcoteLv2
19 Jul 2019
