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

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

Document Summary

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 cause of motion: force acceleration velocity displacement position. Vector= has to have the direction of the motion. Distance (scalar quantity: ground covered during motion. Displacement (vector quantity: change in position between two time stamps. Average speed= distance / time : both scalar quantities = scalar answer. Average velocity= displacement/ time: distance < displacement velocity greater, distance > displacement speed greater. Acceleration due to gravity =-9. 81 m/s 2 time: sign just telling what direction movement is going. Displacement and velocity will always start low and then peak. Max velocity reached half way through max displacement. When max velocity is hit, acceleration = 0. When max displacement is reached, velocity = 0. If there is no arrow at the top of a line it is not a vector: length = magnitude, direction = direction.