Originally Posted by **oz93666** it shouldn't matter whether it's 4 or 400 meters below the surface , the tension will be the same unless density of water changes with depth
you have the radius , so calculate the volume , **what is the formula for the volume of a sphere??**, then with the density of seawater you can calculate the up force ... |

FBuoyancy = density*volume*g

(1030)(4/3)(pi)(.6)^3(9.81)

Then Fnety = 0 = FBuoyancy - Tension - mg

Could I solve for tension this way?