Define the term inertia and its types. A ball and a car, which one has greater inertia?

CBSE Class 9 CBSE Class 9 Science
1

Define the term inertia and its types. A ball and a car, which one has greater inertia?

2

The unwillingness of a particle or an object to change its state of rest or uniform motion along a straight line by itself is called inertia.
There are three types of inertia:

  1. Inertia of rest
  2. Inertia of motion
  3. Inertia of direction
    Since, inertia ∝ mass of the objects
    As we know, Mball << Mcar
    Thus, the car has greater inertia.