Two balls of the same volume, but different weights: 5kg and 2kg are connected by a thread. Determine the tension

Two balls of the same volume, but different weights: 5kg and 2kg are connected by a thread. Determine the tension of the thread connecting the balls if they float in an upright position, completely submerged in the water.

m2 * a = Fa2-m2 * g-T, but in fact it is equal to zero, because the body is at rest => Fa2 = m2 * g + T Fа acts upward, the tension force of the thread and Fthe tension are directed downward. It was the 1st case, and the 2nd: m1 * a = 0 = Fa1-m1 * g + T => Fa1 = m1 * gT The bodies have the same volume (“Two balls of the same volume”) => the forces are equal (Archimedes) m2 * g + T = m1 * gT Put in all the data and got the answer: T = 15 N.