Moment Of Inertia Of A Hinged Door

This maximizes the torque you exert.

Moment of inertia of a hinged door.

Ignore the thickness of the door express your answer using two significant figures. It is hinged at one end and rotates about a vertical axis practically without friction. The door is 1 0 m wide and weighs 12 kg. What is the door s moment of inertia for rotation about a vertical axis.

Express your answer to two significant figures and include the appropriate units. 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. Find the angular speed of the door just after the bullet embeds into it. A 23 kg solid door is 220 cm tall 95 cm wide.

When an object is just sitting without any motion the moment of inertia is 0. What is the door s moment of inertia for rotation on its hinges. A 22 kg solid door is 220 cm tall 90 cm wide. What is the moment of inertia of the door about the axis through 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. If you exert a force at the hinge the door will not move. What is the door s moment of inertia for rotation about a vertical axis inside the door 12 cm from one edge. Moment of inertia is the measure of an object s resistance to changes in its rotation rate.

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. 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. The moment of inertia of the door about the vertical axis at one end is ml 2 3. Solution for a uniform thin solid door has height 2 24 m width 0 873 m and mass 25 0 kg.