Question

define three laws of motion?

Answer 1

hi
see this
http://en.wikipedia.org/wiki/Newtonian_laws_of_motion

Answer 2

1. First law: The velocity of a body remains constant unless the body is acted upon by an external force.
2.Second law: The acceleration a of a body is parallel and directly proportional to the net force F and inversely proportional to the mass m, i.e., F = ma.
3.Third law: The mutual forces of action and reaction between two bodies are equal, opposite and collinear.