Q.

A cube has side length 5 cm and modulus of rigidity 105 N/m2. The displacement produced by a force of 10 N in the upper face of cube is ______ mm.           [2026]


Ans.

(2)

η=F/Aϕ=FhAx

x=FhAη=10×5×10-225×10-4×105=1500 m

∴ x=2 mm