If you have a ball spinning on a string which is attached to a pole, will it keep spinning in the absence of any friction/air resistance/other retarding forces?
I'm trying to think about this in terms of Newton's First Law which suggests that the ball will keep trying to rotate, causing tension in the string and maintaining circular motion. Intuitively however it seems impossible that giving the ball a starting push would enable it to keep spinning around in a circle forever.
But on the other hand objects in orbit will continue to stay in orbit since the force of gravity is continually pulling them inwards whilst they continue to try and move in a circular orbit.
I would really appreciate any explanations to help me, at this point just very confused.