ellewrobo asked: You were asked: Going back to the spherical objects question, isn't the Earth a bit ovaloid in shape? Why's that?
theradishspirit
And you replied: We bulge at the centre because of centrifugal force. When something spins very fast, it bulges around the rotational equator. It’s the same principle at work in this carnival ride.
But if there is one thing I've learned in physics, it is that centrifugal force is a big fat myth. Is it real? I'm confused. And if not, is it centripetal force that is causing this effect?
*centripetal force, you’re right. I always mix them up.
