P In constructing a large mobile, an artist hangs an aluminum sphere of mass 6.0 kg from a vertical steel wire 0.50 m long and 2.5 X 10-3 cm2 in cross-sectional area. On the bottom of the sphere he attaches a similar steel wire, from which he hangs a brass cube of mass 10.0 kg. For each wire, compute (a) the tensile strain and (b) the elongation.

Solution 29E Step 1: Introduction : In this question, we need to find the tensile strain and the elongation Data given Mass of sphere m = 6.0 kg S Length of the wire l = 0.50 m 3 2 5 2 Area of cross section of the wire A = 2.5 × 10 cm = 2.5 × 10 m Mass of brass cube m =c10.0 kg