Moment Of Inertia Of A Hinged Door

Find its moment of inertia for rotation on its hinges.

Moment of inertia of a hinged door.

The door is 1 0 m wide and weighs 12 kg. When an object is just sitting without any motion the moment of inertia is 0. Moment of inertia is the measure of an object s resistance to changes in its rotation rate. What is the door s moment of inertia for rotation about a vertical axis.

This maximizes the torque you exert. Express your answer to two significant figures and include the appropriate units. Ignore the thickness of the door express your answer using two significant figures. The easiest way to open a door is to exert a force on the side of the door opposite the hinge and to push or pull with a force perpendicular to the door.

The moment of inertia of the door about the vertical axis at one end is ml 2 3. Homework equations i 1 12 m a 2 b 2 mr 2 parallel axis theorem the attempt at a solution i initially used the door height and width as a and b i m sure this is right and used the door thickness as the distance between axis. If you exert a force at the hinge the door will not move. Determine the moment of inertia of a 17 kg door that is 2 5 m high and 1 5m wide and is hinged along long side.

Solution for a uniform thin solid door has height 2 24 m width 0 873 m and mass 25 0 kg. What is the door s moment of inertia for rotation on its hinges. Find the angular speed of the door just after the bullet embeds into it. What is the moment of inertia of the door about the axis through its hinges.

A 22 kg solid door is 220 cm tall 90 cm wide. A 23 kg solid door is 220 cm tall 95 cm wide. What is the door s moment of inertia for rotation on its hinges. When you try to make it move that mean you want to change the speed of the object from 0 to any there will be moment of inertia effect.