PHED-2116EL Lecture Notes - Lecture 1: Angular Velocity, Rotational Energy, Potential Energy
Document Summary
Accomplished by applying a force to an object and displacing that object through some distance. More specifically, work is the product of an applied force and the displacement of that force"s point of application along that force"s line of action. Note that this is the work done by an average or constant force. Note that the applied force and displacement have the same line of action. Note that the angular equivalent of this is w=m or the applied moment of torque times the angular displacement. For a varying force, the work done is the area under a force vs displacement curve. Positive work entails the displacement of an object in the direction of the applied force. Can be thought of as a force doing work on an object. For example; applying a force to push a barbell up off the chest. Negative work entails the displacement of an object in the opposite direction of the applied force.
