1. The problem statement, all variables and given/known data If you swing a ball in a vertical circle using a thin string, at the bottom of the circle the tension in the string must be greater than the ball's weight. True or false? 2. Relevant equations F = mvv/r F = mg 3. The attempt at a solution The correct answer, it says, it's true. But why isn't it false? Why can't the tension and the ball's weight have an equal magnitude of force? Is it because the "thin" string is also pushing down on the ball so the net weight is ball's weight + thin string weight?