Dr. Gundry's Diet Evolution: Turn Off the Genes That Are Killing You and Your Waistline Paperback â March 3, 2009
Confidence votes 317. Inertia is rotary momentum; an object's ability to continue spinning when a decelerating force is applied. Just as a heavy object takes more effort to stop from the same speed as a light object, so does a heavy object take more effort to stop from turning at the same speed as a light object. So assuming they are turning at the same angular velocity, the heavier one has a larger inertia.
The mass of an object is the amount of matter it has, and it stays the same wherever you are, regardless of gravity. That's why an object that has 20 kilograms of mass on earth also has 20 kilograms of mass while on the moon, even though it would only weigh 1/6 as much.igure out the mass of an object. Because we're trying to get weight from mass, we know we already have mass. Mass is the fundamental amount of matter an object has, and is expressed in kilograms.