A uniform, thin solid door has height 2.20 m, width 0.997 m, and mass 25 kg. Find its moment of inertia for rotation on its hinges. Is any piece of data unnecessary? Specify your answer in SI units up to 2 decimal places. Do not include units. [Hint: The door is thin, so imagine a constant surface mass density σ. Write down an expression for the mass dm of a rectangular strip section of width dx and height H .]

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter10: Fixed-axis Rotation
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Problem 8CQ: A massless tether with a masses tied to both ends rotates about a fixed axis through the center. Can...
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A uniform, thin solid door has height 2.20 m, width 0.997 m,
and mass 25 kg. Find its moment of inertia for rotation on its
hinges. Is any piece of data unnecessary?
Specify your answer in SI units up to 2 decimal places. Do not
include units.
[Hint: The door is thin, so imagine a constant surface mass
density σ. Write down an expression for the mass dm of a
rectangular strip section of width dx and height H .]
Transcribed Image Text:A uniform, thin solid door has height 2.20 m, width 0.997 m, and mass 25 kg. Find its moment of inertia for rotation on its hinges. Is any piece of data unnecessary? Specify your answer in SI units up to 2 decimal places. Do not include units. [Hint: The door is thin, so imagine a constant surface mass density σ. Write down an expression for the mass dm of a rectangular strip section of width dx and height H .]
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