A cube of side 40 mm has its upper face ...

A cube of side 40 mm has its upper face displaced by 0.1 mm by a tangential force of 8 kN. The shearing modulus of cube is :

`2xx10^9Nm-2`

`4xx10^9Nm-2`

`8xx10^9Nm-2`

`16xx10^9Nm-2`

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