How does Newtons three laws of motions explain all aspects of an objects motion?
Newton’s laws of motion describe the acceleration of massive particles. In modern language, the laws may be stated as: First law If no net force acts on a particle, then it is possible to select a set of reference frames, called inertial reference frames, observed from which the particle moves without any change in velocity. This law is often simplified into the sentence “An object will stay at rest or continue at a constant velocity unless acted upon by an external unbalanced force”. Second law Observed from an inertial reference frame, the net force on a particle is proportional to the time rate of change of its linear momentum: F = d ( mv ) / dt. Momentum mv is the product of mass and velocity. When the mass is constant, this law is often stated as F = m a (the net force on an object is equal to the mass of the object multiplied by its acceleration). An important point is that force and momentum are vector quantities and that the resultant force is found from all the forces present
