Kinesiology 2241A/B Study Guide - Midterm Guide: Centripetal Force, Bouncy Ball, Square Root

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

Document Summary

All bodies deliver a force in which the environment delivers a reaction force or counter force of the body. Newton"s third law: for every force applied on a body, the body applies an equal and opposite force. Ex: when doing a pushup, the person exerts a downward action force against the ground, yet the ground exerts an equal upwards reaction force against the person. Ex: a person does a back flip off of a diving board. When doing a layout" flip, the mass of the person is far away from their centre of gravity. However, as you move from layout pike tuck, mass of the person moves closer to their centre of gravity. Thus, they spin at a faster rate. In this example, the reaction force is the push of the board on the person. The forcar is the perpendicular distance from the centre of gravity (on the person) to the reaction force (board)