An aluminium rod, whose Young’s modulus is 7.0 x 109 Nm-2, has a breaking strain of 0.2%. The minimum cross sectional area (in m2) of the rod in order to support a load of 104 N is:
(a) 1 x 10-2
(b) 1.4 x 10-3
(c) 1.0 x 10-3
(d) 7.1 x 10-4
(e) 1 x 10-4
