Question about satellite orbit

In summary, the conversation discusses questions about the gravitational pull of the sun and Earth on a spaceship traveling to the moon. One question is about the distance from Earth where the sun's gravitational pull is balanced by Earth's, and the other question is about the distance from Earth where the net gravitational force on the spaceship is zero. The conversation also mentions asking for the functional form of gravitational force and knowing how to add vectors.
  • #1
InstaGaeta
1
0
I'm a beginner in physics and have a couple easy question;

How far from Earth must a space porbe be along a line toward the sun so that the sun's gravitational pull balances the earth's?

A spaceship is going from the Earth to the moon in a trajectory along the line joining the centers of the two bodies. At what distance from the Earth will the net gravtitational force on the spaceship be zero?

Thanks for you time.
 
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  • #2
Do you know the functional form of the gravitational Force?
Do you know how to add vectors?

You have to tell us what you already know about this topic ...
 
  • #3


Hello,

Thank you for your questions about satellite orbit. I am happy to assist you in understanding this topic.

To answer your first question, the distance from Earth where the gravitational pull of the sun balances the gravitational pull of the Earth is called the Lagrange point. There are five Lagrange points between the Earth and the sun, with the third one being the point where the gravitational forces are balanced. This point is approximately 1.5 million kilometers from Earth.

For your second question, the net gravitational force on a spaceship traveling from Earth to the moon will be zero at the point where the gravitational forces of the Earth and the moon are equal. This point is known as the L1 Lagrange point and is located approximately 56,000 kilometers from the surface of the Earth.

I hope this helps to answer your questions about satellite orbit. If you have any further questions, please do not hesitate to ask. Keep exploring and learning about physics!

Best regards,


Scientist
 

1. How do satellites maintain their orbit?

Satellites maintain their orbit through a balance between their velocity and the gravitational pull of the Earth. The speed of the satellite must be fast enough to counteract the pull of gravity and prevent it from falling back to Earth.

2. What factors affect a satellite's orbit?

The main factors that affect a satellite's orbit are its altitude, mass, and velocity. The shape and size of the Earth also play a role, as well as any external forces such as atmospheric drag or gravitational pulls from other objects.

3. How long can a satellite stay in orbit?

The length of time a satellite can stay in orbit depends on its altitude and speed, as well as the atmospheric conditions and any external forces acting on it. Some satellites can stay in orbit for decades, while others may only last a few years.

4. Can satellites collide in orbit?

Yes, satellites can collide in orbit. This is a concern for satellite operators and there are systems in place to track and prevent collisions. However, the vastness of space means that collisions are relatively rare.

5. Can satellites change their orbit?

Yes, satellites can change their orbit through the use of thrusters or other propulsion systems. This allows them to adjust their altitude or change their position in relation to the Earth. However, these changes require careful planning and precise calculations to avoid potential collisions or disruptions to other satellites.

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