Kinesiology 2241A/B Lecture 6: 2241 Lecture 6 - September 25

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Daniel Bechard

Document Summary

Kinematics is the branch of classical mechanics which describes the motion of points, bodies (objects) and systems of bodies (groups of objects) without consideration of the causes of motion . Distance (scalar quantity) ground covered during motion. Displacement (vector quantity) - change in position between two time stamps. Average velocity = displacement / time. Displacement has direction therefore velocity has a direction. Distance is over displacement because he did not run in a straight line. There fore distance is greater which means speed is greater. What"s the link between displacement, velocity and acceleration. Acceleration due to gravity = -9. 81 m/s2. Differentiation use slope of the curve. Max velocity is reached half way through displacement. Acceleration once reached half way in displacement, acceleration starts to decrease. When hit max velocity, acceleration will be at 0 acceleration. Vectors are used to represent vector quantities. Find the vertical and horizontal components that comprise. Horizontal and vertical vector components are known.