T/G Layout 1

ewton’s Laws of Motion

1. An object continues in a state of rest or uniform motion unless acted on by

an external force.

2. The resultant force acting on an object is pro p o rtional to the rate of change of
   momentum of the object, the change of momentum being in the same dire c t i o n
   as the forc e.


3. To every force or action, there is an equal and opposite reaction.

N

figure 54a.

figure 54b.

figure 54c.