To have centripetal force you just need curved trajectory with force pulling towards center.
...pulling towards WHAT CENTER???
Is this the force equal to the chair in the example given by Geoff???
It doesn't have to be physical object (rope) made of atoms to pull.
Gravity will do.
Think about it a tad deeper.
Yes, according to youse guys at 9.8 meters per second squared, it pulling things toward the center of the Earth...so they acting in the same direction?
Forget about centripetal/centrifugal force.
I already proved that it cannot be applied to a silly fake satellite.
I also already proved that there is only ONE force acting on a silly fake satellite, and that is gravity.
Look:
http://www.physicsclassroom.com/Class/vectors/u3l2b.cfm
Inertia is not a force, so is completely unable to resist the accelerative force of gravity.
Therefore, for every second that a silly fake satellite is in motion, its velocity MUST increase by 9.8 metres per second...
Not debatable.
So, after twenty years, a silly fake satellite like the ISS should be travelling at tens of billions of miles per hour...
Which we do not observe in reality.
Ergo, orbital mechanics is fake.
QED.
kek
As an FE aren't you forbidden to use gravity in an argument?
Cause it doesn't exist, much like the silly satellites you talk of.
So you are using one thing that doesn't exist, (gravity)
To prove that another thing doesn't exist (satellites)
Interesting thought process.
Inertia, while perhaps technically not a force,
It does come in to play, it's the force moving the satellite forward.
As it moves forward, gravity pulls it toward the earth.
If the satellites' speed is sufficient, it will simply fall around the earth.
And continue to do so.
Hope this helps.