Calculate the speed of a satellite

  • Thread starter Thread starter Eros
  • Start date Start date
  • Tags Tags
    Satellite Speed
AI Thread Summary
To calculate the speed and time period of a satellite orbiting Earth at 600 km, one must first determine the total distance from the center of the Earth, which is the Earth's radius (6400 km) plus the satellite's height (600 km), totaling 7000 km. The gravitational force acting on the satellite at this height is crucial for finding its acceleration and angular speed. The confusion arises from incorrect unit handling and the misunderstanding of the relationship between time, distance, and velocity. Proper calculations involve using the gravitational pull to derive the satellite's orbital speed and time period. Accurate understanding of these concepts is essential for solving the problem effectively.
Eros
Messages
5
Reaction score
0

Homework Statement


A satellite is revolving round the Earth at a height of 600 Km. Find the speed of the
satellite and the time period of the satellite, if the radius of the Earth is 6400 km, and
mass of the Earth = 6*10^24 kg.


Homework Equations





The Attempt at a Solution



Well this is what i thought of till now...
we need to work out the time it takes to get round the earth..

6400/600 = 10.6666 (recurring). so 10 hours?...opps

another look
velocity = distance /time...

is time = timeperiod... I'm confused .. lol help please
 
Physics news on Phys.org
Why are you dividing the radius of the Earth by the height of the satelite? Did you even think about what units you have?

What is the distance of the satellite from the center of the earth? What is the gravitational pull on the satellite at that height? What is the acceleration due to that pull? What angular speed does that correspond to?
 
distance between satellite and Earth is 600m... umm center of the Earth is not given prbly 6400/2? tht's the question given... nothin else i mean abt gravitational pull , angular speed etc.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Calculating the height of a geostationary satellite of Earth
Replies
12
Views
18K
Satellite Orbiting: Speed, Period, Altitude Calc.
Replies
2
Views
3K
When do I include the Earth's radius in questions involving satellites?
Replies
5
Views
2K
Potential Energy and raising a satellite from Earth into a Circular Orbit
Replies
5
Views
2K
How much work is done when a satellite is launched into orbit?
Replies
5
Views
2K
The Height and Speed of a Geosynchronous Satellite
Replies
11
Views
2K
Minimum work required to put object into orbit?
Replies
10
Views
12K
Centripetal Acceleration of Satellite
Replies
7
Views
2K
Calculating Energy for Satellite Orbit at 300km | Physics Homework Help
Replies
37
Views
3K
Satellite Motion Homework: Find 2nd Satellite Speed
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top