Is My Satellite Gravitational Forces Homework Correct?

AI Thread Summary
The homework involves calculating the radius, speed, and period of a satellite in orbit, given a gravitational force of 3000 N. The radius was calculated to be approximately 8.15 million meters, with a satellite speed of 6994 m/s, and an orbital period of about 7321.7 seconds or 2.03 hours. The calculations utilize gravitational force and centripetal force equations effectively. The original poster expresses uncertainty about their understanding of gravitational forces and seeks confirmation on their calculations. Overall, the responses indicate that the calculations appear correct and logical.
HarleyM
Messages
56
Reaction score
0

Homework Statement



a 500 kg satellite experiences a gravitational force of 3000 N, while moving in a circular orbit around the earth.

a) Find the radius of the circular orbit
b)Find the Speed of the Satellite
c) Find the period of the orbit

Homework Equations



g=GM1M2/r2
Fc=Mv2/r
V=2∏r/T

The Attempt at a Solution



a)g=GM1M2/r2
Fnet = GM1M2/r2
r=√(6.67x10-11)(5.98x1024)(500)/3000 N)
r=8.15x106


b)3000 N= (500)V2/(8.15x106)
V=6994 m/s (25, 178 km/hr)

c) V= 2∏r/T
T=2∏r/V
T=7321.7 S (2.03 h)

Does everything look okay, I am really usure of my understanding of gravitational forces.. Thanks!


Fnet=MV2/r
 
Physics news on Phys.org
looks good to me
I didn't check the numbers but your working seems fine

is there anything specific that you don't understand about the gravitational force?
 
I can't think of anythin specifically that confuses me i just taught it to myself today and i want to make sure its all logical and I am not breaking rules etc. when doing calculations.. Thank you for your help and confidence boost!
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged 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

A 500 kg satellite experiences a gravitational force of....
Replies
4
Views
3K
Satellite experiencing certain gravitational force - problem
Replies
1
Views
3K
Finding the radius of the satellite's circular orbit
Replies
3
Views
2K
Potential Energy and raising a satellite from Earth into a Circular Orbit
Replies
5
Views
2K
Height and Acceleration of a Satellite in Orbit
Replies
3
Views
1K
Satellite and gravitational force
Replies
4
Views
3K
Change in momentum for a satellite in circular orbit
Replies
6
Views
3K
Find the speed of a satellite at a distance R from Earth
Replies
39
Views
4K
Universal Gravitation problem, help with final statement.
Replies
18
Views
2K
Does an orbiting satellite speed up as it falls towards earth
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top