What does it mean when inertia is zero?

The off diagonal elements of the Inertia Tensor are called the products of inertia. The products of inertia are zero when the body is symmetrical about the axes of rotation, such as for a rectangular box or cylinder rotating on their symmetry axis.

What is inertia explain with examples?

Inertia of rest: The tendency of a body to remain in its position of rest is called inertia of rest. Example: While standing in a bus, we fall backward if the bus starts suddenly. Inertia of motion: The tendency of a body to remain in its state of uniform motion in a straight line is called inertia of motion.

Can inertia of a body be zero?

Moment of inertia is the product of mass and square of the perpendicular distance from axis of rotation So if any body possess zero moment of inertia then either its mass is zero or the distance of all mass particles should be zero from the axis of rotation that means if the whole mass is distributed over the axis of …

What are 3 types of inertia?

There are three forms of inertia: 1. Resting inertia 2. Motion inertia 3. Directional inertia.

What do you mean by inertia?

inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity. Inertia is a passive property and does not enable a body to do anything except oppose such active agents as forces and torques.

What is inertia give an example inertia of motion?

Inertia of Motion: Examples of Inertia of Motion: 1) The passengers fall forward when a fast moving bus stops suddenly: When the driver of a bus applies brake suddenly, the lower part of the body comes to rest as the bus comes to rest but, the upper part of the body continues to move forward due to inertia of motion.

What is inertia give an example of inertia of motion class9?

Inertia resists change in motion. Objects want to stay in rest or motion unless an outside force causes a change. For example, if you roll a ball, it will continue rolling unless friction or something else stops it by force.