# Which experiment is used for determining the mass moment of inertia?

## Which experiment is used for determining the mass moment of inertia?

1.4 Experimentally Determining an Objects Moment of Inertia For a body with a mathematically indescribable shape, the moment of inertia can be obtained via experiment using a pendulum which employs the relation between the period of oscillation and the moment of inertia of the suspended mass.

How do you find the experimental value of inertia?

It is the rotational analog to mass or inertia in translational motion. The moment of inertia (I) of a basic solid of uniform density can be calculated by first deriving an appropriate formula from the general formula I = ∫ (x2 + y2)dm.

### Where is moment of inertia used?

The moment of inertia of a rotating flywheel is used in a machine to resist variations in applied torque to smooth its rotational output.

What is meant by moment of inertia in physics?

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). The axis may be internal or external and may or may not be fixed.

#### How is moment of inertia defined?

Definition of moment of inertia : a measure of the resistance of a body to angular acceleration about a given axis that is equal to the sum of the products of each element of mass in the body and the square of the element’s distance from the axis.

How can you experimentally find the moment of inertia of an object?

By applying a known torque to a rigid body, measuring the angular acceleration, and using the relationship τ = Iα, the moment of inertia can be determined.

## How do you experimentally measure rotational inertia?

the mass, R is the distance the mass is from the axis of rotation. To find the rotational inertia experimentally, a known torque is applied to the object and the resulting angular acceleration is measured. = I , where α is the angular acceleration.

How do you find the moment of inertia of a pulley system?

In the question, the value of the moment of inertia of the pulley system is given, $I = 3kg – {m^2}$. So the angular acceleration of the system is $\alpha = 3rad/{s^2}$. The moment of inertia is the rotational equivalent of the mass in linear motion. It is the tendency of the body to resist angular acceleration.