The ancient Greek understanding of physics was limited to the statics of simple machines (the balance of forces), and did not include dynamics or the concept of work. During the Renaissance the dynamics of the Mechanical … See more

The work W done by a constant force of magnitude F on a point that moves a displacement s in a straight line in the direction of the … See more

For moving objects, the quantity of work/time (power) is integrated along the trajectory of the point of application of the force. Thus, at any instant, the rate of the work done by a … See more

The principle of work and kinetic energy (also known as the work–energy principle) states that the work done by all forces acting on a particle … See more

The SI unit of work is the joule (J), named after the 19th-century English physicist James Prescott Joule, which is defined as the work required to exert a force of one newton through a displacement of one metre.
The dimensionally … See more

Constraint forces determine the object's displacement in the system, limiting it within a range. For example, in the case of a slope plus gravity, the object is stuck to the slope and, when attached to a taut string, it cannot move in an outwards direction to make … See more

The scalar product of a force F and the velocity v of its point of application defines the power input to a system at an instant of time. Integration of … See more