biomechanics

• centre of mass


  the point at which all of the body's mass is thought to be concentrated
• factors affecting stability

  1. centre of mass
  2. base of support
  3. body mass
  4. position of line of gravity
• newtons first law

  Law of inertia
• newtons second law

  law of acceleration
• newtons third law

  law of action reaction
• law of inertia


  an object will stay in a constant state of motion or rest, until acted on by an external force
• law of acceleration 


  an object will accelerate in the same direction as the force applied to it and the amount of acceleration is directly proportional to this force
• law of action reaction 


  for every action there is an equal and opposite reactional force