FORCE:

Push or pull of an object is considered a force. Push and pull come from the objects interacting with one another. Terms like stretch and squeeze can also be used to denote force.

In Physics, force is defined as:

The push or pull on an object with mass that causes it to change its velocity.

Force is an external agent capable of changing the state of rest or motion of a particular body. It has a magnitude and a direction. The direction towards which the force is applied is known as the direction of the force and the application of force is the point where force is applied.

The Force can be measured using a spring balance. The SI unit of force is Newton(N).

Common symbols:

F→, F

SI unit:

Newton

In SI base units:

kg·m/s²

Other units:

dyne, poundal, pound-force, kip, kilo pond

Derivations from other quantities:

F = m a

Dimension:

LMT^-2

Formula for Force

The quantity of force is expressed by the vector product of mass (m) and acceleration (a). The equation or the formula for force can mathematically be expressed in the form of:

F = ma

Where,

• m = mass

• a = acceleration

It is articulated in Newton (N) or Kgm/s².

Acceleration a is given by

a = v/t

Where

• v = velocity

• t = time taken

So Force can be articulated as:

F = mv/t

Inertia formula is termed as p = mv which can also be articulated as Momentum.

Therefore, Force can be articulated as the rate of change of momentum.

F = p/t = dp/dt

Force formulas are beneficial in finding out the force, mass, acceleration, momentum, velocity in any given problem.

Unit of Force

• In the centimeter gram second system of unit (CGS unit) force is expressed in dyne.

• In the standard international system of unit (SI unit) it is expressed in Newton (N).