djeitnstine said:Moment of inertia is [tex]L = I \omega[/tex] I meaning inertia and omega meaning angular velocity
berkeman said:Hint: Think of the door as two doors, joined at the axis 14cm in...
berkeman said:Might be a typo. L is angular momentum, and I is the Moment of Inertia. Just follow the PF Library link that was automatically added to your term moment of intertia:
https://www.physicsforums.com/library.php?do=view_item&itemid=31
The inertia of a rotating door refers to the tendency of a rotating door to resist changes in its motion. It is a measure of the door's resistance to being accelerated or decelerated.
The inertia of a rotating door affects its motion by making it harder to start or stop rotating. This means that more force is needed to open or close the door, compared to a non-rotating door.
The inertia of a rotating door is calculated by multiplying the mass of the door by the square of its distance from the axis of rotation. This is known as the moment of inertia and is represented by the symbol I.
The inertia of a rotating door is affected by the mass and shape of the door, as well as its distance from the axis of rotation. The farther the door is from the axis, the greater its inertia will be.
The inertia of a rotating door can be reduced by decreasing its mass or by moving it closer to the axis of rotation. This will make it easier to open and close the door as less force will be needed to overcome its inertia.