Question

what is inertia write write its SI unity​

Answer 1

Answer:

Inertia is the resistance, of any physical object, to any change in its velocity. This includes changes to the object's speed, or direction of motion.

It is unit less quantity

Answer 2

Answer:

Inertia can be defined as ability of body to retain its original state of motion i.e. rest or motion.

actually i dont know its SI units...