Question

Two 5-cm-diameter spherical balls, one is made of aluminum, the other iron, submerged in water. The buoyant forces acting on them will be:

a) Both will sink, so There is no buoyant force acting on either of them;
b) The buoyant force acting on aluminum ball is bigger than iron ball;
c) The buoyant force acting on aluminum ball is smaller than iron ball;
d) The buoyant force acting on aluminum ball is the same as iron ball;

Answer 1

Even if they are made of different materials, two spherical balls of the same diameter submerged in water experience the same buoyant force because it depends on the volume of water displaced, not the material, according to Archimedes' principle.

Step-by-step explanation:

The question is addressing the concept of buoyant forces acting on objects submerged in water, which is a part of Physics. According to Archimedes' principle, the buoyant force on an object submerged in a fluid is equal to the weight of the fluid it displaces. In this case, both balls have the same diameter and thus displace the same volume of water when submerged. Regardless of their material (aluminum or iron), they will both experience the same buoyant force because the buoyant force depends on the volume of water displaced, not the material of the object. Therefore, the correct answer is d) The buoyant force acting on the aluminum ball is the same as the iron ball.