law of motion: It states that a body at rest or
in motion will remain at rest or in motion unless an
external force is applied on it.
Second law of motion: It states that a body will
accelerates, when a force is applied on it.
force applied, F = ma
'F' and 'a' are vectors.
Third law of motion: It states that action and
reaction are equal and opposite.
every action there is an equal and opposite reaction