Hello everybody, i have got a question about the concept of centripetal force in general. Imagine a gondula of a carousel that has just started to rotate. Each gondula moves away from the center of the circular motion and forms an angle with the string. What would be the correct physical line of argumentation for explaining the movement away from the center from a coordinate system which is NOT accelerated. My thoughts: Since the gondula follows a circular motion there must be centripetal force pointing towards the centre. This is the case as long as ω is constant. But right at that moment when the carousel starts moving there must be a force pointing in the opposite diretion of the centripetal force because an observer outside the carousel can see how the gondula forms an angle with the string. But where does it come from?