# What is the difference between inertia and momentum How are they related to each other describe this in words as well as with equations?

## What is the difference between inertia and momentum How are they related to each other describe this in words as well as with equations?

Inertia is generally described as an object’s resistance to motion, with momentum being the tendency of an object to continue moving. Both have implications for linear motion applications, but while inertia is a fundamental sizing parameter, momentum isn’t directly addressed in system calculations.

### Is there any difference between inertia and moment of inertia?

Moment of Inertia is the resistance to angular acceleration (i.e. distribution of mass). Inertia is more of a linear property of mass describing how much an object resists a change in motion from a force or equivalently how massive it is.

#### What is moment and inertia?

moment of inertia, in physics, quantitative measure of the rotational inertia of a body—i.e., the opposition that the body exhibits to having its speed of rotation about an axis altered by the application of a torque (turning force).

What is the difference between inertia and motion?

In inertia of motion, the body must be in motion and must be in uniform motion whereas in inertia of rest, the body must be in state of rest. If net external force on a body is zero, its acceleration must be zero. Completes step by step solution: When it comes to Law of Motion, Law of Inertia the most important point.

What is the difference between moment of inertia and mass?

The mass of a body is same everywhere. However, moment of inertia of the same body can be different. Moment of inertia depends on the axis of rotation and structure of the body. Inertial mass is same for a particular body no matter what.

## What is difference between moment of inertia and Centre of mass?

Centre of Mass of an object is a point where total mass of the body is supposed to be concentrated. Moment of Inertia is the resistance of body to rotational motion. It varies from point of axis to axis of rotation for the same body.

### What is the difference between inertia of rest and inertia of direction?

Inertia of rest – An object stays where it is placed, and it will stay there until you or something else moves it. (i.e. Dust particles stay at rest until you shake a carpet.) (i.e. Body going forward when a car stops.) Inertia of direction – An object will stay moving in the same direction unless a force acts on it.

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

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 difference between momentum and force?

Force is generally the external action upon a body whether it is a pulling or pushing action. Momentum on the other hand is the representation of the amount of motion within a moving body….

Difference Between Force and Momentum
A force exists for a stationary object The momentum is zero for a stationary object

What is the relationship between mass and moment of inertia?

For a point mass, the moment of inertia is just the mass times the square of perpendicular distance to the rotation axis, I = mr2. That point mass relationship becomes the basis for all other moments of inertia since any object can be built up from a collection of point masses.

## What is the difference between Centre of mass and Centre of gravity?

Centre of mass is the point at which the distribution of mass is equal in all directions and does not depend on gravitational field. Centre of gravity is the point at which the distribution of weight is equal in all directions and it does depend on gravitational field.