Kinesiology 3341A/B Lecture Notes - Lecture 4: Sagittal Plane, Angular Velocity, Centrifugal Force

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 3341A/B
• Professor: Jim Dickey

Document Summary

Rotations are important because this is how we move. Each of the planes has 2 dimensions. The intersection between planes is what gives us axis. Proximal end of trunk is actually closer to the hip. Angular velocity: linear and angular are very similar to displacement vs distance. The white lines show the areas where you are allowed to throw. If the string breaks the object will keep going in a straight line. The object must be pulling towards the middle = centripedal force. Centrifugal force = force being pushed outwards from the middle. There is always a velocity going outwards and an acceleration towards the middle but never goes towards the middle. They must have different linear velocities at different points of the bat because there is diff travel distance but they happen at the same time. A stirring wheel has the same angular velocity but a diff linear velocity. Now he has to change how he swings.