- #1
flyingpig
- 2,579
- 1
Homework Statement
Let's say that you are on a Ferris Wheel or you are spinning a Yo-yo horizontally in a circle. There is a fictitous force known as centrifuge force that is pushing the car or yo-yo outwards.
However, the centripetal force that is keeping it in tact, is a vector pointing towards the center. We know that F [tex]\alpha[/tex] a, so even though centrifuge is a fictitious force, how come the "vector" of it is opposite to that of centripetal acceleration?
The Attempt at a Solution
I have been pondering this question for 3 days...
For the yoyo case, would to be just the tension?
T = [tex]\stackrel{mv²}{r}[/tex]
Also, I read a proof on how centripetal acceleration is derived, but why do we always neglect the negative sign in the formula a = [tex]\stackrel{-|v²|}{r}[/tex]