What is the K.E. of the satellite?

In summary, a 5,000.0 kg satellite has been placed in a circular, sun-synchronous orbit at an altitude of 1300.0 km. The K.E. of the satellite can be calculated using the formula K=(1/2)mv^2. The forces acting on the satellite in that orbit and its acceleration may not be affected by the sun synchronicity.
  • #1
starchaser2020
2
0
A satellite has been placed in a circular, sun-synchronous orbit at an altitude of 1300.0 km. The satellite has a mass of 5,000.0 kg. What is the K.E. of the satellite?

I know K=(1/2)mv^2 ... but I have no idea where to go from here. I Know I am over-thinking this. So any help would be greatly appreciated!
 
Physics news on Phys.org
  • #2
What forces act on the satellite in that orbit? What is its acceleration?
(I don't think the sun-synchronicity needs to be taken into account.)
 
  • #3
Deleted!
 
Last edited:
  • #4
PeroK said:
The sun synchronicity is telling you how long the satellite takes to orbit. You could actually work this out using the radius if you know enough about circular motion, as suggested by haruspex above.

But I suspect you won't know enough physics yet so you have been given the period of orbit.

How long does the sun take to "orbit" the earth?
Interesting... it's not a term I'd come across, so I looked it up before answering the post. My reading is that sun synchronicity is not directly related to orbital period. Indeed, I read that typical sun synchronous orbits are at around 500-600km and take under two hours. The term refers to the orbits being so arranged that the Earth's oblateness causes the orbit to precess one day per year, thereby always appearing the same from the sun's perspective. Hence it didn't seem relevant to me.
 
  • #5
Yes, you're right. It's not about the period at all. Apologies.
 

Related to What is the K.E. of the satellite?

What is the K.E. of the satellite?

The K.E. of the satellite refers to the kinetic energy of a satellite, which is the energy it possesses due to its motion.

How is the K.E. of a satellite calculated?

The K.E. of a satellite can be calculated using the formula KE = 1/2 * m * v^2, where m is the mass of the satellite and v is its velocity.

Why is the K.E. of a satellite important?

The K.E. of a satellite is important because it determines the amount of energy required to launch and maintain the satellite in orbit.

What factors affect the K.E. of a satellite?

The K.E. of a satellite is affected by its mass, velocity, and the force of gravity acting upon it.

Can the K.E. of a satellite be changed?

Yes, the K.E. of a satellite can be changed by altering its velocity or mass through external forces such as rocket thrusters or collisions with other objects.

Similar threads

  • Introductory Physics Homework Help
Replies
1
Views
852
  • Introductory Physics Homework Help
Replies
12
Views
858
  • Introductory Physics Homework Help
Replies
5
Views
1K
  • Introductory Physics Homework Help
Replies
5
Views
1K
Replies
1
Views
993
  • Introductory Physics Homework Help
Replies
5
Views
2K
  • Introductory Physics Homework Help
Replies
2
Views
2K
  • Introductory Physics Homework Help
Replies
6
Views
2K
  • Introductory Physics Homework Help
Replies
7
Views
2K
  • Introductory Physics Homework Help
Replies
2
Views
832
Back
Top