Question

What is force? Write the S.I unit of force.

Answer 1

- Hint- We will define force as clearly as we can and also mention the formula for the same. We will also mention some effects of force on different things and then we will mention the S.I unit of force as well.

Complete step-by-step solution -

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).
The Force has different effects and here are some of them.
Force can make a body which is at rest to move.
It can stop a moving body or slow it down.
It can accelerate the speed of a moving body.
It can also change the direction of a moving body along with its shape and size.
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:
$ \Rightarrow F = ma$
Where,
m = mass
a = acceleration
It is articulated in Newton (N) or $kgm/{\sec ^2}$.

Note: Do not forget to write the S.I unit of the force in the end. Doesn't matter if it is asked or not asked by the question. It is always necessary to mention the S.I unit.