Different Situations Related To Circular Motion

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Experiments on circular motion can include analyzing the forces and acceleration of a ball in different glass shapes, such as squared versus concave. Another situation involves a pearl on a necklace moving circularly, examining the forces at play. A rotating bicycle wheel can be studied by observing a pearl sliding on a spoke, focusing on the forces and work required to move it from the edge to the center. Additionally, releasing a pearl from the hub to observe its trajectory as it moves outward can provide insights into the forces acting on it. These experiments will deepen the understanding of circular motion dynamics.
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Hello,
I was asked to make experiments related to circular motion. The experiments will engage on different situations related to circular motion that we need to explain such as:

-Analyzing the forces and the acceleration of a ball that moving circularly in a squared glass compared to the same ball that moving circularly in a concave glass.

-Analyzing the forces of a pearl threaded in necklace that also moving circularly for few seconds.

Which different situations related to circular motion should I do my experiments about?
 
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Consider a rotating bicycle wheel. On one of the spokes, there is a loose pearl, which can slide on the spoke radially. Study the forces and work needed to pull the pearl from the periphery to the center of the wheel, while sliding on the spoke.

Another one: place the pearl at the hub. Release it and study its trajectory as it slides towards the periphery. What forces act on it?
 
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