A Crane Lifts a Steel Submarine of Density 7800 Kg/m³

A crane lifts a steel submarine of density 7800 kg/m³ and mass 20,000 kg.What is the tension in the lifting cable (a) when the submarine is submerged in water of density 1000 kg/m³,and (b) when it is entirely out of the water?

A) (a) 2.0 × 10⁵ N (b) 1.7 × 10⁵ N
B) (a) 1.7 × 10⁵ N (b) 2.0 × 10⁵ N
C) (a) 2.6 × 10³ N (b) 2.0 × 10⁵ N
D) (a) 2.0 × 10⁵ N (b) 2.6 × 10³ N