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acceleration

Overview page. Subjects: Mathematics — Sports and Exercise Medicine.

The rate of change in velocity or the change in velocity occurring over a given time interval: acceleration = change of velocity/time. It is usually expressed as metres per second squared...

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air resistance

Overview page. Subjects: Sports and Exercise Medicine — Mathematics.

The resistance to motion experienced by an object moving through the air caused by the flow of air over the surface of the object. It is a force that affects, for example, the speed of a...

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centre of gravity

Overview page. Subjects: Sports and Exercise Medicine — Mathematics.

The point in a body at which all external forces can be taken to act. In a uniform gravitational field this is the same as the body's centre of mass. However, in a non-uniform gravitational...

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coefficient of restitution

Overview page. Subjects: Sports and Exercise Medicine — Mathematics.

A parameter associated with the behaviour of two bodies during a collision. Suppose that two billiard balls are travelling in the same straight line and have velocities u 1 and unull...

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cognitive model

Overview page. Subjects: Sports and Exercise Medicine — Computing.

A model adopted by sport psychologists to study achievement orientated attributions. According to the model, athletes process information about outcomes (e.g. winning or losing) according...

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conservation of linear momentum

Overview page. Subjects: Sports and Exercise Medicine — Mathematics.

When the total force acting on a system is zero, the linear momentum of the system remains constant for all time. This fact is called the principle of conservation of linear momentum.

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displacement

Overview page. Subjects: Mathematics — Sports and Exercise Medicine.

1. Symbol s. A specified distance in a specified direction. It is the vector equivalent of the scalar distance.

2. See electric displacement.

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extensibility

Overview page. Subjects: Sports and Exercise Medicine — Computing.

The capability of a programming language to accept definitions of new constructs.

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internal force

Overview page. Subjects: Sports and Exercise Medicine — Mathematics.

When a system of particles or a rigid body is being considered as a whole, an internal force is a force exerted by one particle of the system on another, or by one part of the rigid body on...

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line of action

Overview page. Subjects: Sports and Exercise Medicine — Mathematics.

The line of action of a force is a straight line through the point of application of the force and parallel to the direction of the force.

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