- #1

kepherax

- 9

- 1

- Homework Statement
- A picture frame consists of 4 thin pieces of wood glued together. Each wooden piece has the same mass per unit length lambda. The dimensions of each piece is given below. Determine the rotational inertia of the frame about the dashed axis.

- Relevant Equations
- I = mr^2, for rod at edge I = 1/3 mr^2

I total = I1+I2+I3....+In

https://www.physicsforums.com/attachments/250905

I know the answer, but am not certain how they got Lsin(angle) for R?

I know the answer, but am not certain how they got Lsin(angle) for R?

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