Space: DP [orbital velocity] (1 Viewer)

[Rahul]

dot point from section 2 of space:

define the term orbital velocity and the quantiative and qualitative relationship between orbital velocity, the gravitational constant, mass of the central body, mass of the satellite and the radius of the orbit using Kepler's Law of Periods

help please. the hsc online site is too brief

thanks!

 

[...]

well, u have to use maths and words to describ this pt..hence qualitative and quantiative

umm...it should be in pg 47 in Jacaranda...

 

[Dash]

Obviously you know the term orbital velocity. So don't worry about that

On the second part of the dot point:

When comparing quantiatively and qualitatively relationship between orbital velocity, the gravitational constant, mass of the central body, mass of the satellite and the radius of the orbit... Your basically talking about how variations of the vaiables in the velocity equation on the HSC online page affects its overall velocity...

Eg v = sqrt (GM/d)

You can state that as the mass of the central planet decreases, the velocity of the satellite at distance d also decreases.
Also, if the distance d increases, and the mass of the central planet stays the same, the velocity of the satellite decreases.

Stuff like that

Talk mathematically as dotty says! But basically talk about the equation stated above

PS: hope that makes sense... I'm off for lunch! l8rs!

 

[Rahul]

hmm....i basically need help for the qualitative bit.

Originally posted by Dash
You can state that as the mass of the central planet decreases, the velocity of the satellite at distance d also decreases.
Also, if the distance d increases, and the mass of the central planet stays the same, the velocity of the satellite decreases.

yeh, but that is too general, no?
hmm...the verb is define, so that must be it...

 

[Mathematician]

..

I thought we settled this dp before rahul when i asked it.

 

[Rahul]

did we

*goes off to do a search*


hahah come to think of it....i think i actaully posted in that thread....dont i look like the forum idiot

edit: yes it was done before. http://www.boredofstudies.org/community/showthread.php?s=&threadid=11513 here for anyone wanting linkage