8. Centripetal Forces & Gravitation
Uniform Circular Motion
26PRACTICE PROBLEM
Inside a vertical circular track shown in the diagram below, a marble with mass (m) rolls without friction. The track rotates about a vertical axis with a frequency (f). If the frequency (f) is 3.00 revolutions per second and the radius (r) is 20.0 cm, what is the angle θ?
![](https://static.studychannel.pearsonprd.tech/courses/physics/thumbnails/a5fa0b1b-faf1-4b09-93da-4be02374c754)
Inside a vertical circular track shown in the diagram below, a marble with mass (m) rolls without friction. The track rotates about a vertical axis with a frequency (f). If the frequency (f) is 3.00 revolutions per second and the radius (r) is 20.0 cm, what is the angle θ?