# Mechanics

## Elastic energy

Elastic energy is potential energy related to elastic force, stored in…

## Newton’s first law

Newton’s first law states that an object will continue at…

## Newton’s second law

What about cases where the total force on an object…

## Newton’s third law

Newton’s third law states that all forces in nature occur…

## Acceleration

To accelerate means to speed up. The greater the acceleration,…

## Speed

The terms “speed” and “velocity” are not interchangeable, they do…

## Force

The force may be thought of as an influence which tends…

## Friction

Friction can be defined as the force between surfaces in contact…

## Torque (moment of force)

A torque (called also moment, or moment of force) is…

## Velocity

The velocity of an object is a physical vector quantity…

## Motion

In physics, the motion of an object is a change…

## Relative motion

Relative motion is the calculation of the motion of an…

## Circular motion

Circular motion is a common type of rotational motion. Like…

## Rotational motion

The rotational motion deals only with rigid bodies. A rigid…

## Translational motion

Translational motion is the motion by which a body shifts…

## Statics

Informally, statics is the study of forces without motion. More…

## Rigid body

A rigid body (also known as rigid object) is defined…

## Plasticity

Plasticity is the capacity to resist plastic deformation (dislocation movement…

## Viscoelasticity

Viscoelasticity is the study of materials which have a time-dependent…

## Pressure

Pressure is the force applied perpendicular to the surface of…

## Displacement

The displacement of an object is defined as the vector…

## Inertia

Inertia is the resistance, of any physical object, to any…

The viscosity ($$\mu$$) is that property of matter, defined as…