EXTDOLL BELLIDE
gravitational field
-
a
region of space where a mass experiences a
gravitational force
- Newton's Gravitational
gam
universal constant
=
&
"Nm2 leg
-
G =
6 67.
x 10
g mass of point mass or
sphere (ug) gat
-
radius (m)
-velocity
>
&
=
Newron's m
Kepler's 3rd
law of
gravitation law
F =
GM
T
proving Kepler's 3rd law
2f =
ma a =
ran2F =M
g = Ef =
ma
satellites
if the satellite is in a stable orbit then
i
! 4π 2 r3
GM
the force of gravity is exactly sufficient to
provide the acceleration towards the centre orbit
mmmstationary
required motion ·
centre orbit be
-"Most
for circular of must
centre
of earth
-
for Earth :
mass 5 98
.
xiong , be a common accis on
radius =
6 .
37 x 10'm rotation
·
around the
:
equator
gravitational field
-
a
region of space where a mass experiences a
gravitational force
- Newton's Gravitational
gam
universal constant
=
&
"Nm2 leg
-
G =
6 67.
x 10
g mass of point mass or
sphere (ug) gat
-
radius (m)
-velocity
>
&
=
Newron's m
Kepler's 3rd
law of
gravitation law
F =
GM
T
proving Kepler's 3rd law
2f =
ma a =
ran2F =M
g = Ef =
ma
satellites
if the satellite is in a stable orbit then
i
! 4π 2 r3
GM
the force of gravity is exactly sufficient to
provide the acceleration towards the centre orbit
mmmstationary
required motion ·
centre orbit be
-"Most
for circular of must
centre
of earth
-
for Earth :
mass 5 98
.
xiong , be a common accis on
radius =
6 .
37 x 10'm rotation
·
around the
:
equator
