Definition Of Force And Its Si Unit

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.

Definition of force and its si unit. Define force and write its si. Some other si units related to force are the meter for length kilogram for mass and second for time. A force is a push pull or a twist which has a tendency to change the shape state of rest or of uniform motion of the body on which it has been applied. Force is a physical cause that can change the state of motion or the dimensions of an object.

It comprises a coherent system of units of measurement starting with seven base units which are the second the unit of time with the symbol s metre. There are two types of forces based on their. In the standard international system of unit si unit it is expressed in newton n. Other examples of non fundamental forces include the elastic force tension and frame dependent forces such as centrifugal force and the coriolis force.

The newton s strict definition is listed as the force that gives a mass of one kilogram an acceleration of one meter per second squared. The international system of units si abbreviated from the french système international d unités is the modern form of the metric system it is the only system of measurement with an official status in nearly every country in the world. It s si unit is kg m s or newton. N is the international system of units si derived unit of force it is named after isaac newton in recognition of his work on classical mechanics specifically newton s second law of motion one newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in the direction of the applied force.

Contact forces can be classified according to six types. The normal force acts in a direction normal to the surface interaction between objects. Forces which take place when objects touch each other. The corresponding cgs unit is the dyne the force required to accelerate a one gram mass by one centimeter per second squared or g cm s 2.

The unit of force within the international system of units si it can also be represented by the symbol n. The si unit of force is the newton symbol n which is the force required to accelerate a one kilogram mass at a rate of one meter per second squared or kg m s 2. A description of an interaction that causes a change in an object s motion. In the centimeter gram second system of unit cgs unit force is expressed in dyne.

It can also be represented by the symbol f. Share with your friends.