- Law of Inertia:
An object tends to remain in its state of rest (or of uniform motion) unless it is disturbed by an external force.
Therefore, al objects tend to resist their change of state.
Example, if the driver applies a sudden brake, you tend to fall forward with a jerk because your body still wants to move in the same speed and direction of the car.
2. Law of Acceleration:
The acceleration of an object is directly proportional to the force of the object and inversely proportional to the mass of the object.
Accleration = force/mass or
|
F=m*a |
F is expressed in Newton. One Newton is defined as the amount of force required for a mass of 1 kg to accelerate 1 m/s2.
3. Third Law of motion:
For every action there is an equal and opposite reaction.
For example, if you slap the ground with your hand, you get pain in your hand. With whatever force u exert on the ground, the ground hits u back equally 
Another example is when you are swimming or paddling, you are using your arms to push the water behind. What does the water do to you? It propels you forward.
Another common example is when you are walking. You place your foot on the ground and push it backward. The ground exerts an equal and opposite force to push you forward!
