Recent content by Bofors

Thanks again. I've thought about it some more, and I see that I made a statement that is wrong. I said "neither gravity nor centripetal force can cause any acceleration or deceleration in a direction tangential to the circle of rotation". That would be true if that tangent is seen as continually...

Thanks for the replies. But so far as I'm aware, neither gravity nor centripetal force can cause any acceleration or deceleration in a direction tangential to the circle of rotation.

Its velocity, Vp, is towards some other part of the universe, It rotates in the same plane as its direction of travel. The linear velocity of an object on the surface of the planet relative to the centre is Vr. That means the object's total linear velocity is Vp+Vr when it's at one point in its...