Answer:
Explanation:
Let T represent the tension in the swing.
At the peak
where v denotes the velocity needed to maintain the circular motion.
r equals the distance from the rotation point to the center of the ball, which is L+\frac{d}{2} (with d being the ball's diameter).
The threshold velocity can be expressed as
To determine the velocity at the bottom, we can use energy conservation principles at both the top and bottom positions.
At the top
Energy at the bottom
By comparing the two states using conservation of energy, we find
