- #1
i.mehrzad
- 84
- 0
Centripetal force??
Does centripetal force actually act on a body?
I have a question regarding the same here.
If the satellite is attrated to the Earth by the gravitational force F and simultaneously a centripetal force F also acts on the Body. Then the net force acting on the body is:
a)F
b)2F
3)4F
4)zero
My thought over this question:
Assumption: Zero friction offered by air.
We can mentally understand that the satellite continues to rotate about the Earth without falling towards earth. This means that the net force acting on the satellite must be zero.
But the answer is wrong?
Why?
This goes to say that in the free body diagram of the satellite there is no centripetal force(centrifugal with opposite direction) to be accounted for.Or is it that we accept the fact that centrifugal is a pseudo force and therefore is not to be accounted for? I am thoroughly confused.
Does centripetal force actually act on a body?
I have a question regarding the same here.
If the satellite is attrated to the Earth by the gravitational force F and simultaneously a centripetal force F also acts on the Body. Then the net force acting on the body is:
a)F
b)2F
3)4F
4)zero
My thought over this question:
Assumption: Zero friction offered by air.
We can mentally understand that the satellite continues to rotate about the Earth without falling towards earth. This means that the net force acting on the satellite must be zero.
But the answer is wrong?
Why?
This goes to say that in the free body diagram of the satellite there is no centripetal force(centrifugal with opposite direction) to be accounted for.Or is it that we accept the fact that centrifugal is a pseudo force and therefore is not to be accounted for? I am thoroughly confused.