Newton's Second Law
For every action there is an equal and opposite
reaction
Newton's Second Law as stated below applies to a wide range of physical
phenomena, but it is not a fundamental principle like the
Conservation Laws. It is applicable only if the
force
is the net external force. It does not apply directly to situations where
the mass is changing, either from loss or gain of material, or because the
object is traveling close to the speed of light where relativistic effects
must be included. It does not apply directly on the very small scale of the
atom where quantum mechanics must be used.
Hewitt's
CP Surf Unit I: Mechanics Unit 1:
Chapter
5 Learning Links
