Kinesiology 3341A/B Lecture Notes - Lecture 8: Angular Acceleration, Gyration, Rate Limiting

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

Document Summary

Moment of inertia: the angular equivalent of mass the angular equivalent force is equal to the angular equivalent of mass and the angular equivalent of acceleration. If mass is closer to the centre of rotation, it will be easier to rotate (smaller moment of inertia, higher acceleration) Moment of inertia decreases when the mass is more centred, but the acceleration increases. R= distance between point mass and centre of rotation small changes in the radius can greatly impact the inertia. For distributed masses inertia= sum of (m x r^2) Can segment an object and consider that each segment has a mass and a distance from the centre of rotation for that segment. If a weight on a bat is placed farther from the centre of rotation, the radius will be increased, and therefore the inertia will large (vs. if a weight is placed closer to the centre of rotation)