Solution:

Inertia is the inability of an object to change its own state of motion or motion.

Inertia is of two kinds,

1. Motion inertia
2. Static inertia

Motion inertia is the tendency of an object in motion to remain in motion or to change its motion.

E.g., a runner cannot finish the race as soon as he reaches the finish point.

Static inertia is the tendency of a stationary object to remain in its still state or its inability to change its stationary state.

For example, when the horn of a mango tree is shaken, the mango falls off when it starts to move.

The inertia of an object depends on its mass. Inertia increases as mass increases.