Physics

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…

Application of Gravitational Law We can determine acceleration due to gravity at any point using Newton’s law of gravitation. Besides we can determine mass of…

Escape Velocity If we drop a thing from up it falls downward. If we throw a stone vertically upwards, it rises to a maximum height…

Centre of mass We know, a body is composed of many small particles. If it is considered that all the masses of these small particles…

Centre of Gravity We know, the amount of force by which an object is attracted towards the centre of the earth is called its weight.…

Variation due to the rotation of the earth about its axis: Since the earth is continuously rotating about its own axis, except the bodies present…