What are Newton’s laws of motion?

Newton’s laws of motion are three fundamental laws residing in mechanical physics. These laws describe the relationship of objects, the paths of motion, and the forces that are in action between them. 
Newton’s laws are as follows:
- An object at rest remains at rest, and an object in motion remains in motion unless acted upon by an external force.
- The force of an object is equivalent to that object’s mass multiplied by that object’s acceleration. (F=ma)
- For every action, there is an equal and opposite reaction.