Gravity

The objects that move around the earth or any other planet constantly staying on their own orbits are known as a satellite. For example, the…

We know, escape velocity of the earth is 11.2 kms-1. That means, in order to escape from the earth or in order to escape the…

Satellite revolving very near to the earth’s surface: If a satellite remains very near to the earth’s surface, i.e., if h is very small compared…

Summary of Galileo’s Laws and Keplers’ Laws Galileo’s laws: First law: In vacuum all the freely falling bodies starting from rest traverse equal distance at…

Geo-stationary satellite: If an artificial satellite is placed in an orbit of the equatorial plane in such a way, that it is concentric and coplanar…

Velocity of the artificial satellite Suppose the height of a satellite is h from the surface of the earth and if R is the radius…

Launching of an artificial satellite in the space: In order to place an artificial satellite in the orbit, necessary very high velocity is provided by…

Artificial Satellite Artificial satellites are human-built objects orbiting the Earth and other planets in the Solar System. The satellite that is created by man based…

Natural satellite: The materials or stars which revolve round a planet are called satellites. The satellites which are created naturally are called natural satellites. For…

Orbital velocity Objects that travel in uniform circular motion around the Earth are said to be “in orbit”. The velocity of this orbit depends on…