Inertia

InertiaInertia is a property that causes a body to resist changes i... is a property that causes a body to resist changes in its state of motionMotion is the act of changing location from one place to ano... (it is referred to as the internal resistanceResistance is any mechanical force that tends to retard or o... More of a body).

E.g.  Suppose you are standing in the aisle of a stationary bus. As the bus starts to move, your body wants to stay at rest because of inertiaInertia is a property that causes a body to resist changes i.... As a result, you may fall towards the rear of the bus unless you brace yourself.

When the bus reaches a uniform velocity you have no trouble standing in the aisle, because you are also moving with uniform velocity. Suppose the bus driver suddenly applies the brakes. The bus will slow down. Your body, however, has a tendency to keep moving because of inertiaInertia is a property that causes a body to resist changes i.... Again you will need to brace yourself or you’ll fall toward the front of the bus.

The amount of inertiaInertia is a property that causes a body to resist changes i... an object possesses depends directly on its mass:

“The greater the mass, the greater the inertiaInertia is a property that causes a body to resist changes i... the body possesses”