      The Physics of Sprinting GLOSSARY    Home Forces Involved During Running (8) History of Sprinting(1) Physics of Running (3) Parts of the race---- the Acceleration Phase (7) Parts of the Race ---- The Finish (9) Experiment-The Best Start (6) The History of the Sprint Start (2) Types of Crouched Starts(5) glossary(10) Start Phase (4) LINKS (11) Velocity- the rate of change of an object during a certain time interval . Velocity is a vector quantity which mean it has direction as well as magnitude.

Speed- is the distance an object travels divided by the time the object was travelling. It is a scaler quantity which means that there is no direction , therefore in other words it is the magnitude of velocity.

Mass-  the quantity  of matter an object contains. The mass of an object is not dependent on gravity and therefore is different from but proportional to its weight.

Acceleration- The rate of change of velocity with respect to time.

Force of Gravity- the force of attraction between masses, the gravitational force has an infinate range.

Force- The capacity to do work or cause physical change.

Momentum- the product of an object's mass and its velocity.

Impulse- the product of the force exerted on an object and the time interval over which the force acts.

Law of action-reaction-  this law states that for every applied action force there is an equal and opposite reaction force.      