Two Identical Disks, with Rotational Inertia I (= 1/2 MR²)

question 58

Multiple Choice

Two identical disks, with rotational inertia I (= 1/2 MR²) , roll without slipping across a horizontal floor and then up inclines.Disk A rolls up its incline without sliding.On the other hand, disk B rolls up a frictionless incline.Otherwise the inclines are identical.Disk A reaches a height 12 cm above the floor before rolling down again.Disk B reaches a height above the floor of:

• A)24 cm
• B)18 cm
• C)12 cm
• D)8 cm
• E)6 cm

---

Definitions:

Informative

Providing useful or important information or details.

Assumptions

Statements or ideas accepted as true without proof, used as the basis for reasoning or argumentation.

Explanandum

The phenomenon or event that is to be explained, often used in the context of scientific inquiry.

Hypothesis

A proposed explanation for a phenomenon, often based on limited evidence as a starting point for further investigation.