Transcript Linear and Angular Motion - CCVI

Linear and Angular Motion
Principle 4 – Linear Motion
• The greater the applied impulse the greater
the increase in velocity.
Principle 5 – Linear Motion
• Movement usually occurs in the direction
opposite that of the applied force.
A few more definitions
• Joint Range of Motion
– Refers to the amount of movement present at a
particular joint
• Streamlining
– Refers to making an athlete or object as smooth a
possible so that the flow or water or air past the
athlete is smooth. When the lines of flow are
parallel, the flow is said to be streamlined. This
minimizes the surface area of the athlete.
And more…
• Force
– A push or pull that causes motion
• Velocity
– The rate of change of position (m/s)
• Acceleration
– The rate of change of velocity
Principle 6 – Angular Motion
• Angular motion is produced by the application
of a force acting at some distance from an
axis, that is, by torque. The application of
torque produces changes in angular motion.
Principle 7 – Angular Motion
• Angular momentum is consistent when an
athlete or object is free in the air. Once an
athlete is airborne, he or she will travel with a
constant angular motion.
And more definitions
• Torque
– the tendency of a body segment to rotate about its
axis
• Angular velocity
– Refers to how fast an athlete, body segment or object
rotates about its axis
• Moment of Inertia
– The measure of resistance to motion
• Angular Momentum
– The quantity of angular motion