- #1
Badger01
- 7
- 0
"Given a planet has mass M and radius R, find the speed it would have to be launched at. Compare this to the speed required to put the object in the circular orbit."
I understand the first half where Ep=Ek
i.e: GMm/r = 1/2 mv2
rearrange to find v
how ever, I'm unsure of what exactly the 'orbit velocity' is.
is the the value of v in centripetal force, F = mv2/r
is this the same as the speed needed to launch it into orbit or what? i am rather stumped here..
I understand the first half where Ep=Ek
i.e: GMm/r = 1/2 mv2
rearrange to find v
how ever, I'm unsure of what exactly the 'orbit velocity' is.
is the the value of v in centripetal force, F = mv2/r
is this the same as the speed needed to launch it into orbit or what? i am rather stumped here..