Newton's First Law

The Law Of Inertia

The Laws Of Motion

Newtons First Law: An object at rest tends to stay at rest, while a object in motion tends to stay in motion.

Newtons Second Law: Force = Mass * Acceleration.

Newtons Third Law: For every action there is an opposite and equal reaction.

Why I chose these pictures?

I chose these because they both rely on the first law to work. The puck and the golf ball both have to be hit by an unbalanced force to start moving. They both keep going, until the air resistance or friction from the ice has balanced the force.
Professor Mac Explains Newton's First Law of Motion