Mechanical work is defined as the process of transferring energy through the application of force over a distance. When a force is applied to an object and it moves in the direction of that force, mechanical work is done. The formula for calculating mechanical work is W = F × d, where W represents work, F is the force applied, and d is the distance moved. In physics, mechanical work is measured in units called joules. It is an essential concept in various fields, including engineering, mechanics, and thermodynamics. Understanding mechanical work helps in analyzing how machines operate and how energy is transferred in different systems.