Question

почему планеты не падают на звезды

Answer 1

потому что планеты нарезают круги по своим орбитам.

ЭТО ТОЧНО ПРАВИЛЬНОЕ.

Answer 2

Потому что они крутятся вокруг них с такой скоростью, что притяжение уравновешивается центробежной силой.

Answer 3

Why don't planets fall onto stars?

Planets do not fall onto stars because of the balance between the gravitational force pulling them towards the star and their own orbital motion. The gravitational force between a planet and a star is what keeps the planet in orbit around the star. This force is determined by the mass of the star and the distance between the planet and the star. The planet's orbital motion provides the necessary centrifugal force to counteract the gravitational force and maintain a stable orbit.

Gravity and Orbital Motion: Gravity is the force of attraction between two objects with mass. In the case of planets and stars, the gravitational force is what keeps the planets in orbit around the stars. The force of gravity between two objects depends on their masses and the distance between them. The greater the mass of the star, the stronger the gravitational force it exerts on the planet. However, the distance between the planet and the star also plays a crucial role. As the distance between the planet and the star increases, the gravitational force decreases.

Orbital Motion and Centrifugal Force: Orbital motion refers to the path that a planet follows around a star. This motion is a result of the planet's inertia and the gravitational force exerted by the star. When a planet is in orbit, it is constantly moving forward due to its inertia. This forward motion creates a centrifugal force that acts in the opposite direction of the gravitational force. The centrifugal force counteracts the gravitational force, preventing the planet from falling onto the star.

Balance between Gravitational Force and Centrifugal Force: The key to understanding why planets don't fall onto stars lies in the balance between the gravitational force and the centrifugal force. When a planet is in a stable orbit, the gravitational force pulling it towards the star is equal to the centrifugal force pushing it away from the star. This balance allows the planet to maintain a stable orbit without falling onto the star.

In summary, planets do not fall onto stars because of the balance between the gravitational force pulling them towards the star and their own orbital motion, which provides the necessary centrifugal force to counteract the gravitational force. This balance allows planets to maintain stable orbits around stars.