Kinesiological Concepts of Angular Kinematics

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Kinesiological Concepts of Angular Kinematics
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Angular Distance vs Angular Displacement

• Angular Distance
• Total length of angular pass
• Angular Displacement
• Equal in magnitude to the angle difference
  between initial and final position of object
• Units
• Total from one swing 85 degrees , finish is 30
  degrees back

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Angular Displacement Direction
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Angular Speed vs Angular Velocity

• Angular Speed
• Angular distance / change in time
• Angular Velocity
• Angular displacement / change in time
• Af Ai / t2 t1
• Units

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Angular Acceleration

• Rate of angular velocity change with respect to
  time
• Avf Avi / t2 t1
• Units
• Average and instantaneous Angular Acceleration

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Linear and Angular Displacement

• gt radius between a given point on a rotating body
  and the axis of rotation gt linear distance
• Curvilinear distance radius of rotation x
  angular displacement
• Two conditions must be met

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Linear and Angular Velocity

• Linear Velocity Radius of rotation x angular
  velocity
• Two Components
• If angular velocity is constant
• gt RR gt Linear Velocity
• If linear velocity is constant
• gt RR lt angular velocity

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Linear and Angular Acceleration

• Tangential
• Rate of change in linear velocity
• Should be max just before release
• Radial
• Restraining effect causes acceleration towards
  center
• Incr linear accel or decr radius of curve incr
  in radial acceleration
• Total acceleration calculated using both