A uniform, thin, solid door has a height of 2.2 m, a width of 0.87 m, and a mass of 23 kg. Find its moment of inertia for rotation on its hinges.(adsbygoogle = window.adsbygoogle || []).push({});

Are any of the data unnecessary?

the width of the door is unnecessary

the mass of the door is unnecessary

no; all of the data is necessary

the height of the door is unnecessary

First off, the height of the door should be unnecessary since the distance in moment of inertia is perpendicular to the force being applied? Second I'm having problems finding what I equation to use for a door about the hinge?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Moment of Inertia Door

**Physics Forums | Science Articles, Homework Help, Discussion**