22 Chapter 1
And in the 17th century,
Newton consolidated
various laws related
to motion into "Thr
Laws of Motion."
These formed the
basis for Newtonian
mechanics.
Newton's Thr Laws of Motion
First Law: Law of inertia
Second Law: Equation of motion (F=ma)
Third Law: Law of action and reaction
The fact that Newton's
thr laws of motion
hold in a inertial
frames is the Galilean
principle of relativity.
Although these rules
were formulated long
ago, we can sti use
them today in most
circumstances.
Huh?
What do you mean by
most circumstances?
That's a gd
question,
Minagi.
There is a
phenomenon that
caot be explained
by Newtonian
mechanics.
It's the
spd of
light!
First
Newton's Thr La
First Law: Law o
Second Law: Eq
Third Law: Law o
RELATIVITY_03.indb 22 3/15/2011 3:26:06 PM

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