Inertia and mass
Tanusri Gururaj, Academic content writer of Physics at Edumarz
Inertia is the natural tendency of objects to resist change in the state of motion or rest.
A body’s mass is the measure of its inertia.
The heavier the body, the more will be its inertia.
Examples of inertia in daily life:
When a car in the state of rest suddenly starts moving, the passengers experience a backward force.
Reason: Due to inertia, the body of passengers continues to be in a state of rest but, since their feet are in contact with the floor of the car, they experience a backward force.
Similarly, when a car in the state of motion suddenly stops moving, the passengers experience a forward force.
Reason: Due to inertia, the body of passengers continues to be in the state of motion even when the car stops.
When a dusty carpet is beaten, it comes in motion but the dust remains in a state of rest due to inertia. Thus, the dust falls off.