Question

How does an objects velocity affect its interia?

Answer 1

tendency to resist changes in velocity

The more inertia an object has (which is measured by the mass of an object), the harder it is (the more force it takes) to change its velocity

Answer 2

The inertia of an object is its tendency to resist changes in velocity. The more inertia an object has (which is measured by the mass of an object), the harder it is (the more force it takes) to change its velocity (which is the object's speed and its direction of motion).