# Biomechanics

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• Created by: Allie Kay
• Created on: 27-03-14 10:11
• Biomechanics
• Newton's Laws
• 1st Law - Law of Inertia
• Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
• 2nd Law - Law of Accelartion
• Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
• 3rd Law - Law of Reaction
• For every action, there's an equal and opposite reaction.
• Motions
• Linear Motion
• Linear motion is motion along a straight or curved line at the same distance, time and speed.
• Examples: Curved Linear Motion - Shot Put. Straight Linear Motion - Rolling a ball in a straight line.
• Angular Motion
• An object that spins around it's axis of rotation.
• General Motion
• This is a combination of angular and linear motion.
• Cycling is an example of general motion, the wheels are in an angular motion, whereas the bike as a whole is moving forwards in a straight or curved line
• Mass
• Centre of Mass
• However the centre of mass of a body is the point at which all of its mass could be considered to be concentrated.
• The mass of a body is the amount of material of which it is made.
• Stability
• The state or quality of being stable.
• Stability Depends on the following factors:        1) The position of athlete's centre of  mass           2) Position of athlete's line of gravity     3) Size of the athlete's area of support.