The distortion of the Earth's crustal plates is an example of shear on a large scale. A particular crustal rock has a shear modulus of 1.5 × 1010 N/m2. Determine the shear stress involved when a 10-km layer of this rock is sheared through a distance of 5.0 m.
(a) 3.5 × 106 N/m2
(b) 4.5 × 106 N/m2
(c) 5.5 × 106 N/m2
(d) 6.5 × 106 N/m2
(e) 7.5 × 106 N/m2
(f) None of the above.