The an object in motion stays in motion unless effected by an unbalanced force.
The acceleration of an object as produced by an net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
- The result of when a 12-N net force is applied to a 3kg object is 4kg squared
The picture above shows how the forces act on the mugs.
For every action, there is an equal and opposite reaction.
Relate this to the world around you: when you play pool your witnessing all three of Newton's laws.
When you put the balls in the rack and take it off they are still (object at rest stays at rest)
The forces of the pool balls are balanced (Newton's Second Law) until the white ball is hit and then the object in motion stays in motion until it hits it's target.
On the break, the white ball's force hits the other balls for an successful break
On the next players turn he exemplifies Newton's third law (for every action there is an equal and opposite reaction) the force from hitting the white ball hits the yellow striped ball with almost the same force (sort of like Newton's cradle.
The video above put all of the laws together in the Highlights of an 8 ball pool game.