What is a measure of an object's inertia?

Answer 1

His mass.

Answer 2

velocity or m/s/s

Sorry but this answer is wrong.

First of all it is ambiguous. For clarity it should be written (m/s)/s or m/s2.

But this is not inertia anyway. Nor is it velocity (m/s). It is acceleration, i.e. change in unit velocity per unit time. Inertia is the resistance to acceleration and is measured quite simply in units of mass (kg in the SI system of units).

Inertia should not be confused with either momentum (measured in units of mass x velocity, or kg.m/s) or moment of inertia (which is resistance to angular acceleration and is measured in units of kg.m2)

Also wrong. Inertia and moment of inertia are interchangable terms (both kg-m^2 or lb-in^2) and should not be confused with mass.

or u could just tell us kg/m/m which isn't ambiguous at all kg/m^2 (contrary to what you said)

Answer 3

A body's ability to withstand a change in its state of motion.
Mass.
Inertia is not a measure. It is a concept. As the word itself tells you, it is 'tendency to be inert', i.e. tendency not to change.

The inertia that you most commonly encounter is to do with acceleration. This inertia is mass.

The next most commonly encountered inertia is thermal inertia.

There are many other kinds of inertia as well.

Mass

Answer 4

there is no unit for inertia; inertia is determined by and therefore reflected by the mass of an object, and is a property of this object such that it does not change with speed, temperature etc.

Answer 5

Inertia can be measured in units of mass, like kilograms.

Answer 6

Inertial mass and gravitational mass are the same quantity, so if you weigh an object, you are measuring inertia as well as weight.

Answer 7

mass

Answer 8

kg m2

Answer 9

Its mass.

Answer 10

df