NCERT Exercise 8.11 - Mechanical Properties of Solids

Question: A 14.5 kg mass on a 1.0 m steel wire (area 0.065 cm^2) is whirled in a vertical circle at 2 rev/s. Find elongation at the lowest point.

Answer: Elongation = **about 1.87 x 10^-3 m = 1.87 mm**.

Full step-by-step NCERT solution with diagrams on Something by Zero.