Newton's First Law

    An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an unbalanced force.

Ex:  If the ball is falling through the air, it will continue falling until it either hits the ground and comes to rest, or is acted upon by another player or force. 

Newton's Second Law

    The acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object.

Ex: Net external force = mass x acceleration

F= M x A

Ex: A 2 kilogram volleyball is spiked and accelerates at 6 meters per second squared. 

F= M x A

F= 2kg x 6m/s2

F=12N

Newton's Third Law

    All action has a reaction.

Example:  When the ball hits a players palms, his palms exert a reaction and sends the ball flying through the air in the opposite direction.

F= 12m/s