ElizabethE:Reference Frames

What is a difference between an inertial and non-inertial reference frames?
Inertial Reference Frame: An inertial reference fram is defined either by an object that is not moving or is moving at a constant velocity. Nithe the speed nor direction may change.

Non-Inertai Reference Frame: A non-inertial reference frame is defined by an object that is undergiong acceloration.

Give an example of each.
Inertial Reference Frame:

1) A train car on a staight track going north at 60mph.

2) A plane traviling at constant velocity.

4) A submarine travaling in a staight line at 30 nots. Non-Inertai Reference Frame:

1) A car stoping at a stop light.

2) A car making a right hand turn.

3) The moon.

4) A plane that is in adive.

How many of each can you find?
Since any non accelorating object can be used to define an inertial reference frame, there are an infinite number of them.