Principle of buoyancy used in Aquatic sport is established by :

Question

Accepted Answer

The principle of buoyancy, which is crucial in aquatic sports, is established by Archimedes, making Option 2 the correct answer. Here is a detailed explanation:

1. **Explanation for Option 2 (Archimedes):**
   - Archimedes, a Greek mathematician and physicist, is credited with discovering the principle of buoyancy, also known as Archimedes' Principle. This principle states that any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. This principle is fundamental in understanding how objects float or sink in water, which is directly applicable to aquatic sports. For instance, swimmers and divers rely on buoyancy to stay afloat and maneuver in water. The understanding of buoyancy helps in designing swimwear and equipment that enhance performance in water sports.

2. **Explanation for why other options are incorrect:**

- **Option 1 (Issac Newton):**
     - Isaac Newton is renowned for his laws of motion and universal gravitation, which are pivotal in the field of physics. However, his work does not specifically address the principle of buoyancy. While Newton's laws can be applied to understand forces in fluids, they do not directly establish the concept of buoyancy as Archimedes' Principle does.

- **Option 3 (Aristotle):**
     - Aristotle was a Greek philosopher and polymath who made significant contributions to various fields, including physics. However, his work did not specifically establish the principle of buoyancy. Aristotle's contributions were more philosophical and observational rather than mathematical or experimental, as was the case with Archimedes.

- **Option 4 (Vinci):**
     - Leonardo da Vinci was a polymath known for his contributions to art, science, and engineering. While he studied fluid dynamics and made observations about water, he did not establish the principle of buoyancy. His work was more focused on the artistic and mechanical aspects of fluid motion rather than the scientific principles governing buoyancy.

In conclusion, Archimedes is the correct answer because he formulated the principle of buoyancy, which is essential for understanding and applying the concepts of floating and sinking in aquatic sports.