Conservation of Energy with Rotation Video Lessons

Concept

# Problem: A uniform hollow disk has two pieces of thin light wire wrapped around its outer rim and is supported from the ceiling (See the figure below). Suddenly one of the wires breaks, and the remaining wire does not slip as the disk rolls down. Use energy conservation to find the speed of the center of this disk after it has fallen a distance of 2.20 m.

###### Problem Details

A uniform hollow disk has two pieces of thin light wire wrapped around its outer rim and is supported from the ceiling (See the figure below). Suddenly one of the wires breaks, and the remaining wire does not slip as the disk rolls down. Use energy conservation to find the speed of the center of this disk after it has fallen a distance of 2.20 m.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Conservation of Energy with Rotation concept. You can view video lessons to learn Conservation of Energy with Rotation. Or if you need more Conservation of Energy with Rotation practice, you can also practice Conservation of Energy with Rotation practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Julia took 4 minutes and 58 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Bouwmeester's class at UCSB.