Although the phrase “escape velocity” is commonly used, it is more appropriately described as a speed rather than a velocity because it is directionless; the escape speed increases with the primary body’s mass and decreases with distance from the primary body. The object’s escape speed is thus determined by how far it has already travelled, […]
Escape Velocity of Earth Read More »
Class 11, Gravitation, NEET, Orbital velocity, escape velocity, PhysicsConcept of Escape velocity When standing on Earth, if we throw any object up, it comes back to us. Have you ever wondered why it does come back to us and doesn’t leave the surface of the earth? The possible reason is the backward pull exerting on it. The backward pull exerted by the surface
Introduction Escape velocity is the speed required for a body to escape the gravitational field or gravitational centre of attraction without the need for additional velocity or acceleration. The escape velocity reduces with altitude. In other words, escape velocity can be defined as the minimum velocity a body must have to escape the gravitational attraction
Gravity, as well as gravitational force, can be written interchangeably with each other. However, they are not the same thing; they are quite different from one another. Gravity, as well as gravity force, happens between every matter that exists on this planet. It is also considered the weakest force on Earth and plays no part
Modern Form Of Newton’s Law Of Universal Gravitation Read More »
Class 11, Gravitation, NEET, Physics, Universal law of gravitationContact forces are forces that occur when two interacting items are believed to be physically engaging one another. Forces are defined in newtons (N or kgm/s²), while displacements are expressed in metres (m). Despite their great physical separation, the sun and the planets, for example, have a gravitational pull towards one another. There is also
Work Done by a Constant Force Read More »
Class 11, Gravitation, NEET, Physics, Universal law of gravitationConservative force is nothing but a force. The force is independent of the path of the particle. It means that the conservative force depends only on the object’s position or the start and endpoints. The conservative force will be zero if a particle moves in a closed loop. The conservative force law conserves energy. The
What is Conservative Force Read More »
Class 11, Gravitation, NEET, Physics, Universal law of gravitationWeight, in a practical sense, refers to how heavy or light an object is, regardless of its size or shape. Identifying whether an object is heavy or light is also a simple task. The practical reference of light and heavy, on the other hand, becomes problematic when estimating the actual weight of an object. Also
Introduction We live on the earth, and on it, we can walk and breathe air that does not escape into space. Life on earth is possible because of gravity. Gravity is also the phenomenon that governs all planetary motion in space. Gravity is the attractive property of any given mass. Gravitation does not depend on
The Universal Law of Gravitation Read More »
Class 11, Gravitation, NEET, Physics, Universal law of gravitationAny fluid exists in layered form. The friction between the layers of the fluid causes drag. This drag which affects the motion of the fluid is termed as viscosity. When an object is dropped in a fluid, the viscosity of the fluid affects the motion of the object. During its motion the highest velocity attained
The only thing that would happen if you tried to smash a ball pin into a wall is that people would stop giving you their ball pins. When pounded with the same force, a nail, on the other hand, is considerably more likely to pierce the wall. All of the force between the wall and
