Answer:
Therefore, the stress on the wire is 1.05 x 10^9 Pa.
Step-by-step explanation:
To calculate stress, we need to know the force applied to the wire and its cross-sectional area.
The first step is to calculate the cross-sectional area of the wire:
A = πr² = π(0.75mm)² = π(0.00075m)² = 5.58 x 10^-7 m²
Next, we need to calculate the force applied to the wire due to the weight of the mass:
F = m*g = 60kg * 9.81 m/s² = 588.6 N
Now we can calculate the stress:
stress = F/A = 588.6 N / 5.58 x 10^-7 m² = 1.05 x 10^9 Pa
Therefore, the stress on the wire is 1.05 x 10^9 Pa.