Ex. 10 : A tangential force of 2100 N is applied on a surface area 3 x 10-6 m² which is 0.1 m from a fixed face. The force produces a shift of 7 mm of upper surface w.r.t bottom. Calculate the modulus of rigidity of the material.
Q: 0.25 in. 5 in. 1 in. 0.25 in. -0.25 in. 2.5 in.
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