Chapter 6. Work, Energy, Power. Work. The work done by force is defined as the product of that force times the parallel distance over which it acts. The unit of work is the newton-meter, called a joule (J) Work is a scalar. q. Work. s cos q. q. Work. F cos q. Energy.
Work, Energy, Power
s cos q
F cos q
Works for systems with no losses (friction, air resistance, etc.)