Newton's Laws and Their Application in Everyday Life

Never heard of Isaac Newton right? A physicist who created Newton's Laws. Yes, Newton created these laws of physics to calculate the force or motion of an object. So, what is Newton's law?

in short, Newton's laws are the 3 laws of physics that are used as the basis of classical mechanics. The law describes the relationship between the force of an object when it works and its motion. To find out more about Newton's three laws, both their sound, formula, and examples, check out the following review!


1. Newton's Law I

The sound of Newton's 1st Law is "If the resultant force on an object is equal to zero, then the object that was originally at rest remains stationary, objects that are all moving in a straight line will continue to move in a straight line with a constant speed as well."

This means that any object that is stationary will not move until there is a push or pull force that makes it move, while an object that is moving will continue to move until a force influences it to stop.

The formula for Newton's first law is as follows:


In everyday life, Newton's 1st Law can be described as below:

  • A fast-moving vehicle then suddenly brakes, pushing the occupants forward.
  • The vehicle that has just braked suddenly then suddenly moves forward, pushing the occupants backwards.
  • A coin on paper that is on the table will remain in position if the paper is pulled quickly.

2. Newton's laws II

The sound of Newton's second law is "The change in the speed of an object will be proportional to the amount of force on the object and inversely proportional to the mass of the object."

The point is that the mass of an object has a major influence on the force in a system. Increase or decrease in mass will be a change.

Newton's II Law formula is:

ƩF = ma


ƩF= resultant force (kg m/s20

m = object mass (kg)

a = acceleration (m/s2)

An example of Newton's 2nd law in everyday life is:

  • Small cars go faster than big cars with a large mass.
  • Style when pulling a cart full of contents.
  • The acceleration of a moving car is proportional to the force and inversely proportional to the mass of the car.

Newton's III law

It reads, "If an object exerts a force on a certain object, then that object will exert a force equal to the force it receives but in the opposite direction."

The meaning of the sound is that an object will interact when there is a force. The form of this interaction is by giving the force received in the opposite direction.

There are 3 formulas from Newton's 3rd law, namely:

  1. Friction force (Fg)

Fg= μ x N

  1. gravity(w)


  1. Similar weight (n)

s = pxg


μ = friction coefficient

N = normal force

m = mass of object

g = Earth's gravity

Examples of Newton's 3rd law in everyday life are:

  • When sitting in a chair, the body pushes the chair down, but the chair holds the body up.
  • A basketball bouncing off the ground will bounce up.
  • Gravity, magnetic force, and electric force are included in Newton's Laws
  • Someone who pushes the body against the wall, then the wall will give a push equal to the force pushing the body against the wall.

Now, with an explanation of Newton's Laws, both Newton I, II, and III, as well as examples in everyday life, it's easier to understand, right? So, a change in the location of an object due to a push or pull can be calculated by the amount of force or resultant force, the acceleration of motion, and the mass of the object with Newton's formula.