A Shear Force Is Applied to a Cube of Glass

Multiple Choice

A shear force is applied to a cube of glass, 10 cm on a side, such that the top of the cube is displaced sideways relative to the bottom. If the shear force is 10 000N, by how much does the top of the cube move relative to the bottom? The shear modulus of glass is 3x1010 N m-2.

A) 0.33 μm.
B) 1.0 μm.
C) 3.3 μm.
D) 10.0 μm.
E) 33.3 μm.