Correct option is A
Given,
Length, L = 8 m
Diameter (ɸ) = 20 mm = 20 × 10-³ m
Density of steel (ds) = 7850 kg/m³
Given,
Length, L = 8 m
Diameter (ɸ) = 20 mm = 20 × 10-³ m
Density of steel (ds) = 7850 kg/m³