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Disk and a hoop

A disk and a hoop of the same mass and radius are released at the same time at the top of an inclined plane. Which object reaches the bottom of the incline first?

The hoop
The disk
Both reach the bottom at the same time.
It depends on the angle of inclination.

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Solution Summary

The solution discusses which object reaches the bottom of an incline first. Gravity and momentum of inertia is explained.