Aristotle’s fallacy

The truth of the conclusions on an argument does not determine whether the argument is a fallacy –  it is the argument which is fallacious. The Greek  physist Aristotle held the view that if a body is moving, some external force is required to keep it moving. This is called Aristotle’s Fallacy.

Law of inertia

The inability of a body to change its state of rest or of uniform motion along a straight line by itself is called            inertia. Mass is a measure of inertia.

Types of  inertia:        

1. Inertia of rest:

The inability of a body to change its state of rest by itself is called Inertia of rest.

Example:

When a train suddenly starts, the passengers standing in the compartment tend to fall backward.

2. Inertia of motion:

The inability of a body to change its state of motion by itself is called Inertia of motion.

Example:

When a moving bus is suddenly stopped, the passengers tend to fall forward.

3. Inertia of direction:

The inability of a body to change its direction of motion by itself is called Inertia of direction.

Example:

When a bus takes a steep turn to the left, a person sitting in it falls to the right