what is inertia?

Question

a. an object’s resistance to a change its motion
b. the speed and direction of an object in motion
c. the motion of an object
d. a force that acts on an object at rest

Answer 1

Inertia is defined as:

a. an object’s resistance to a change in its motion.

Inertia is a property of matter that describes how much an object resists changes to its state of motion, whether that means staying at rest or continuing to move at a constant velocity unless acted upon by an external force.