- #1

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my answers are a. 1.7 * 10^-3, b. 2.2 * 10^-2, c. 3.3 * 10^-3, and I don't know how to solve d. However, when I checked my answers in the back of my textbook, a. is 5.0 * 10^-3, b. 1.0 * 10^-2, c. 5.0 * 10^-3.

What am I doing wrong...?

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- #1

- 176

- 0

my answers are a. 1.7 * 10^-3, b. 2.2 * 10^-2, c. 3.3 * 10^-3, and I don't know how to solve d. However, when I checked my answers in the back of my textbook, a. is 5.0 * 10^-3, b. 1.0 * 10^-2, c. 5.0 * 10^-3.

What am I doing wrong...?

- #2

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[tex]I=\sum m_{i}r_{i}^2[/tex]

where r is the distance from the mass to the axis. So in part a, the distances from the masses to the axis are equal and by simple geometry [tex]0.1/\sqrt{2}[/tex]. The rest should be done in a similar way.

- #3

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okay, i got a,b, c, and d. thanks

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