Newton's First Law: Inertia

Now let's get this thing moving

The Law:

An object at rest will stay in rest, and an object in motion will stay in motion at a constant velocity, unless an unbalanced force acts upon it.


The resistance of an object to any change in velocity

  1. If a car suddenly stops, the passengers will jerk forward.
  2. When a rollercoaster abruptly picks up speed, the riders feel pushed against their seats.