Newton’s three laws of motion 

   Isaac Newton is named the father of science and is the first of all modern scientists. One of his famous discoveries is the three laws of motion. It serves as an example to any answer regarding the question – Can the laws of physics be applied everywhere, from the movement of an ant to the momentum that holds all the planets in their place.

   The first law of motion is that a substance or material tends to keep still unless a force is applied that can cause movement. And a  material moving will keep on moving unless a force acts upon it , basically resistive forces. Moving things will move at the same direction and with the same speed or velocity. Motion ( mechanics) or lack of motion cannot change without an unbalanced force .

    The second law of motion

    F=MA

    Newton said that the acceleration of an object is related to the size or magnitude of the force , as it is a vector quantity, also the direction and is inversely related to the mass = 1/m ( this mathematical expression is given to help you understand what is the meaning of inverse relation).

    A=v2-v1/t => Acceleration = velocity 2 - velocity 1 divided by time . 

    By this equation you can surely understand the relation between acceleration and velocity. For example if you give a force of 10 newtons to a glass full of water , there will be more effect  and more acceleration , but if you give the same force to a truck , there will be less effect , simply because the mass of a truck is greater that the mass of a glass full of water. (Acceleration means the rate at which the speed of an object changes) .

    The third law

    Newton stated that if a force is exerted on anything then another force is going to work back upon . The force that is given back is equal. For example, when a ship gets heavy and exerts a force downward towards the water, the water , not becoming deformed, gives an upward force which is equal , thus becoming balanced. This causes the ship to float. But there are some exceptions .When a canon is pushed forward in the air , the reader after reading this law , will expect it to come back and if not, the law will be violet. But - No law is violet!! The cannon ball will not be much effected simply because it has a large mass.