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Calculate the shearing force required to distort a block of aluminium by 1.5 cm, if its thickness is 30 cm and its surface area is 12 cm-2 . Consider its shear modulus as 2.5 x 1010 Nm2
1.5 x 106 N
0.25 x 106 N
1.5 x 105 N
1.25 x 106 N