Kinematics

Velocity is a measurement of speed in a certain direction of motion. It is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of physical objects. Velocity is a vector quantity, meaning that both magnitude and direction are needed to define it (velocity vector). The scalar absolute value (magnitude) of velocity is called , a quantity that is measured in metres per second (m/s or m⋅s−1) in the SI (International System of Units) system. For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector. If there is a chang

geometric object that has magnitude (or length) and direction

Kinematics is a subfield of physics and a branch of geometry. In physics, kinematics studies the geometrical aspects of motion of physical objects independent of forces that set them in motion. Constrained motion such as linked machine parts are also described as kinematics. In geometry, kinematics studies the time dependence of geometrical quantities such as position, distance and angular measure with respect to a frame of reference. Most frequently, the quantities that kinematics deals with are the time derivatives of these quantities and the relations between them. Objects whose motion is

right|thumb|A sphere rotating (spinning) about an axis

force that makes a moving body follow a curved path

rotating machine element used to transmit power from one part to another

form of motion of an object that has velocities in both the dimensions

device consisting of two pulleys (or in a borderline case only one movable pulley); device multiplying force; machine used to lift heavy loads

physical system of two bodies connected to limit their relative movement

equation used in relativistic physics

rotation of a vehicle or stiff body about the side-to-side axis

frame of reference

In Fig. P is the point of rotation

mathematical description of the behavior of bouncing balls

section of a machine which is used to connect one mechanical part to another

equation created by Evangelista Torricelli

bijection of an Euclidean space that preserves distances

about translation of rigid bodies

one-degree-of-freedom kinematic pair used in mechanisms

eight-dimensional algebra over the real numbers

joint that provides a linear sliding movement between two bodies