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# What is the motion of a satellite?

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## What is the motion of a satellite?

At just the right speed, it will move around the Earth in a circular motion. This type of motion and the path that a satellite moves in is called an orbit. Close to the Earth at an altitude of 100 km, a satellite needs to be moving at 8 kilometres per second (28 000 km/h) to stay in orbit.

## How do you calculate force acting on a satellite?

When a satellite is in circular orbit, gravity is the only force acting on it, which means that the centripetal force and gravity must be equal: Fc = Fg .

## What is the formula for orbital period?

Kepler’s third law – shows the relationship between the period of an objects orbit and the average distance that it is from the thing it orbits. This can be used (in its general form) for anything naturally orbiting around any other thing. Formula: P2=ka3 where: P = period of the orbit, measured in units of time.

## What are the 4 types of satellites?

Types of Satellites and Applications

• Communications Satellite.
• Remote Sensing Satellite.
• Geocentric Orbit type staellies – LEO, MEO, HEO.
• Global Positioning System (GPS)
• Geostationary Satellites (GEOs)
• Drone Satellite.
• Ground Satellite.

## What two main factors keep a planet in motion?

The Two Forces That Keep the Planets in Motion Around the Sun

• Gravity. Gravity is the primary force that controls the orbit of the planets around the sun.
• Inertia.
• Gravity Working with Inertia.
• Velocity and Gravity.

## What is the principle of launching a satellite?

The fundamental principle to be understood concerning satellites is that a satellite is a projectile. That is to say, a satellite is an object upon which the only force is gravity. Once launched into orbit, the only force governing the motion of a satellite is the force of gravity.

## What is the period of the satellite’s motion?

The period of the orbit must be 24 hours. But in addition, the satellite must be located in an equatorial orbit and orbiting in the same direction as Earth’s rotation. All three criteria must be met for the satellite to remain in one position relative to Earth’s surface.

## What is a satellite office?

Before we go any further, let’s define what a satellite office is: A satellite office is a branch of a larger company that is physically separate from the organization’s main office. Satellite offices can range dramatically in size, housing anywhere from one employee to hundreds.

## What are the basic parts of a satellite?

Satellites come in many shapes and sizes. But most have at least two parts in common – an antenna and a power source. The antenna sends and receives information, often to and from Earth. The power source can be a solar panel or battery.

## Is gravity stronger than inertia?

Surprisingly, horizontal impulses changed substantially more with weight than with mass. Gravity exerted a greater influence than inertia on both vertical and horizontal forces generated against the ground during running.

## Which is the correct equation for the motion of a satellite?

where G is 6.673 x 10 -11 N•m 2 /kg 2, Mcentral is the mass of the central body about which the satellite orbits, and R is the average radius of orbit for the satellite. The final equation that is useful in describing the motion of satellites is Newton’s form of Kepler’s third law.

## How is the position of a satellite calculated?

Given those numbers, Mis readily calculated for any time t. However, the actual position of the satellite is given by the true anomalyφ. In polar coordinates (r,f) describing the satellite’s motion in its orbital plane, fis the polar angle. The equation of the orbit is r = a(1 – e2)/(1 + e cosφ)

## How is the speed of a satellite dependent on its mass?

The period, speed and acceleration of a satellite are only dependent upon the radius of orbit and the mass of the central body that the satellite is orbiting. Just as in the case of the motion of projectiles on earth, the mass of the projectile has no effect upon the acceleration towards the earth and the speed at any instant.

## How to calculate the orbital speed of a satellite?

The orbital speed of the satellite can be computed from either of the following equations: (1) v = SQRT [ (G*M Central ) / R ] (2) v = (2*pi*R)/T