Newtons 1st and 2nd and 3rd Law of motion

What does Newton’s first law of motion state

A body will remain at rest or continue to move with constant velocity as long as forces acting on it are balanced

In other words

an object at rest will remain at rest, and an object in motion will stay in motion with constant velocity, unless acted upon by a net external force.

What does Newton’s first law of motion work for and what does it mean

Principle works for both stationary and moving objects

This means that if resultant force of object is 0 / has no resultant force then the object remains stationary

And if the resultant force of a moving object is stationary it will carry on moving at the same velocity bc in both cases ther is no resultant force acting in the object so motion will not change

What is Newton’s second law of motion

the acceleration of an object is directly proportional to the resultant force acting on it and inversely proportional to its mass

What is resultant force

The sum of all forces acting on something

What equation sums up Newton’s second law

Resultant force = mass x acceleration

F=ma

What is inertia

the natural tendency of objects in motion to stay in motion and objects at rest to stay at rest, unless a force causes its velocity to change

What is inertial mass and what is the equation

• how difficult it is to change the velocity of an object

• Inertial mass = force /acceleration

If an object is stationary and has no resultant force on it what happens

The object will continue to stay stationary

If an object is stationary and a resultant dice acts on it what will happen to object

Will accelerate in the direction of the resultant force

If an object is already moving and no resultant force act on it, what happened to the object?

It will continue to move at the same speed and same direction

Even object is already moving and a result in force facts on it the object will…

Accelerate in the direction of the resultant force

What is newtons 3rd law of motion

When two objects interact the forces they exert on each other are equal and opposite

Equal refers to magnitude

Opposite refers to direction

Foce exerting opposite is known as normal contact force