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# Volleyball: Newton's Laws of Motion and Positive Acceleration

By emmyohbabee Oct 21, 2008 289 Words
When a player moves forward and speeds up, they have positive acceleration.
When a player moves forward and slows down, they have negative acceleration.
When a player moves forward and doesn’t make any movement at all, they have zero acceleration.

Newton’s First Law States: An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an unbalanced force.kg). 2.2 lbs Velocity- Runs 8 m in 2 s= 4 m/s2
Acceleration=4 m/s2
The ball speeds up from 0. To 8 m in 2 s

When a player moves forward and speeds up, they have positive acceleration.
When a player moves forward and slows down, they have negative acceleration.
When a player moves forward and doesn’t make any movement at all, they have zero acceleration.

Newton’s First Law States: 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 States: 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; A 1 kilogram volleyball is spiked and accelerates at 4 meters per second squared

Newton's Third Law: All action has a reaction.
Ex: When the ball hits a players palms, his palms exert a reaction and sends the ball flying through the air in the opposite direction.

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