Register to reply

Asteroid orbit physics problem

by Brittykitty
Tags: asteroid
Share this thread:
Brittykitty
#1
Mar22-10, 07:05 PM
P: 81
An asteroid is orbiting around the sun at a distance of 4.2x 1011 m. If the Earth orbits around the Sun at a distance of 1.5 x 1011 m with a period of 3.2 x107 s, what is the period of the asteroid?

Im thinking it was 9.0 x 10^7 s ?
Phys.Org News Partner Science news on Phys.org
World's largest solar boat on Greek prehistoric mission
Google searches hold key to future market crashes
Mineral magic? Common mineral capable of making and breaking bonds
mgb_phys
#2
Mar22-10, 07:22 PM
Sci Advisor
HW Helper
P: 8,954
Do you have a reason for thinking that?
Is it the same reason that Kepler had?
alexk307
#3
Mar22-10, 07:26 PM
P: 27
use kepler's laws. R^3/T^2 is always constant when orbiting the same parent body.

Brittykitty
#4
Mar22-10, 07:32 PM
P: 81
Asteroid orbit physics problem

Hello,

So it would be (1.5x10^11) ^3 / (3.2 x10^7) ?
Brittykitty
#5
Mar22-10, 07:32 PM
P: 81
Hello,

So it would be (1.5x10^11) ^3 / (3.2 x10^7) ?
alexk307
#6
Mar22-10, 07:47 PM
P: 27
An asteroid is orbiting around the sun at a distance of 4.2x 1011 m. If the Earth orbits around the Sun at a distance of 1.5 x 1011 m with a period of 3.2 x107 s, what is the period of the asteroid?

Im thinking it was 9.0 x 10^7 s ?

(4.2x10^11)^3/(t^2) = (1.5x10^11)^3/(3.2x10^7)^2

I'm looking at 1.5x10^8 sec.
Brittykitty
#7
Mar22-10, 07:50 PM
P: 81
Ooo I get it now! wow, thank you soo much :):):) I don't know how I didn't see that from the beginning


Register to reply

Related Discussions
What makes an asteroid an asteroid and not a comet Astronomy & Astrophysics 8
That asteroid... where's it going? Astronomy & Astrophysics 12
Astronaut on Asteroid Introductory Physics Homework 4
Someone want to have fun with asteroid simulation? Astronomy & Astrophysics 5
To destroy an asteroid Mechanical Engineering 10