Question

what are laws
of motion

Answer 1

Newton's laws of motion are three physical laws that, together, laid the foundation for classical mechanics. 
First law: In an inertial frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force.
Second law: In an inertial reference frame, the vector sum of the forces F on an object is equal to the mass m of that object multiplied by the acceleration a of the object: F = ma. (It is assumed here that the mass m is constant – see below.)
Third law: When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.

Answer 2

laws of motion are given by Isaac Newton!!!
there're 3 laws------
--------------------------------
1) anything at rest will remain at rest and anything which is moving will remain moving..... untill an external force is applied to it!!!!
it's also known as Galileo's law of inertia.....

2) force is directly proportional to the change in momentum.....and inversely proportional to the time taken.....

3) for every action there is equal and opposite reaction...
That's it!!!
hope it helps!!!!