8. Centripetal Forces & Gravitation
Uniform Circular Motion
22PRACTICE PROBLEM
Imagine a small ball positioned within a rotating drum, which is open at the top. The drum rotates about a vertical axis with a frequency f, while the ball is restricted to traverse the inner frictionless circular path of radius R. Calculate the angle ϕ at which the ball reaches equilibrium inside the drum, signifying that it does not ascend or descend along the circular trajectory.
![](https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/baa3b482-d15b-49ff-b6df-b5b2b68ff1b7)
Imagine a small ball positioned within a rotating drum, which is open at the top. The drum rotates about a vertical axis with a frequency f, while the ball is restricted to traverse the inner frictionless circular path of radius R. Calculate the angle ϕ at which the ball reaches equilibrium inside the drum, signifying that it does not ascend or descend along the circular trajectory.