The edge of an aluminium cube is 10 cm l...

The edge of an aluminium cube is 10 cm long. One face of the cube is firmly fixed to a vertical wall. A mass of 100 kg is then attached to the opposite face of the cube. The shear modulus of aluminium is 25 Gpa. What is the vertical deflection of this face ?

`3 xx 10^(-7) m`

`4 xx 10^(-7) m`

`8 xx 10^(-7) m`

`2 xx 10^(-7) m`

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