- #1

Coderhk

- 59

- 2

## Homework Statement

In the document below I need to try and find the angular velocity

I need help on part b

## Homework Equations

F=ma

KE_Translational= 0.5mv^2

KE-Rotational= 0.5Iw^2

Assuming g=10m/s^2

## The Attempt at a Solution

I have the answer key attached with the question but I am not sure why the answer key uses 2.5J as the sum of the kinetic energy. Why wouldn't the energy be 6.25J instead. 6.25J is the total gravitational potentia; energy relative to the ground. So shouldn't all that energy be converted into kinetic energy?

#### Attachments

Last edited: