UST1
Incline Planes
Chapter 3 :
>
and Mass
. 1 Inclined Planes
3
Weight :
weight of
3
FORMULAS ! Find the a
person
with a mass
of 54kg on Earth .
needed to convert to
Fret F + F2 + Fz m
54kg 54 9 8 -529 2N
forces incline
planes
-
=
, ...
= x .
= .
on
= t
Fret 9 8 m/sh 329 2 downwards
g
= ma = or
a
-
.
.
Fg =
mg Fg =
-
FN Normal Force :
↑
Frictional force / Drag FN
Applied always perpendicular the surface the object is
Force
- push/pull Fir FD
-
> to on
e ⑧
opposite to
[
Fg and normal force (Fw) oppose one another
acts
FiorT Fg + (m = + a) direction of motion =Fr
Fg
Crate weighs 18 2 kg
Fg 18 2x-9
Person
~
Eg . Added 102ON
180N3
.
= . .
8 = - -
:
weighs 86.0kg Fw 86 9 8 8404
FN (- 1020) = +
-
. =
-
=
- -
= lOZON
Review Q.
t #T
2
Fr 98 .
+ 3 = 29 . 4N a =
sug
2
=
Cry
. 8 x1
9 = 9 8N .
T= 8 . 93N or
* Ask sir now to
·
Fgyz 20 79N
Fa 36N
find tension
=
35 72 8.9N
8
.
= or
Fgocz 10 79N
.
= .
Fgy1 6 93N the slope
up
= .
.
Fgx1 = 6 . 93N
Motion 4 circle
Chapter : in a FORMULAS !
Y
4 1 .
Circular Motion *A
Distance A-A= TY 4 .
1 2
. . a) x -
> =
450280 = 1413 72 .
T= +f = = b) displacement of 900m
Co . In
a v2
6) speed
3 72
.
= 28 .
27 m/s
= towards Cent d) velocity = 18m/
a
F
,
4 . 2
Centripetal force Examples of this :
All forces more towards the centre of the circle+
Turning a corner in a car
·
Obitsopf lanIaccelmon
force
centripetal ↳ and
eration
one
WE Mass
.
4 2 1 .
.
of moon = 7 .
3477x1022kg 2Tx384399403
F = mac
Orbital 2 7230x10 "m/s > x24x60x60
days 2360620 8s
period of
= 360620
2x10IN
Earth = 27 322 .
= .
8
= . =
Frowards Earth
.
A ve
distance/circumference of 384399hm x10 ra
384399x105m
g
1023 14m/s e Towardsth = = .
Chapter S : Gravity Chapter . 6 Orbits
. 1 Newton's Law of Gravitation Motion
5 6 1 Kepler's Law .
of Planetary
FORMULAS ! TYS .
1 3 .
Kepler's Laws
Fg = G MEarth = S .
97x10kg Fg = 16 .
To
6x10 # Planets more in elliptical orbits with the sune focus .
at
G = 6 67 .
= 10-
"NMsun 1 99X1000
.
kg Fg =
3 32 x1022
. N &
. The line
connecting a
planet to the sun
sweeps out equal in equal in tals
are as
Gravitional Field Strength
= k Kepler's constant
*
g
=
E Usun-Earth = 1 . 5x10'm
Farz
formulas
FORMULAS
- includes 5 2 .
constant
a radius
Incline Planes
Chapter 3 :
>
and Mass
. 1 Inclined Planes
3
Weight :
weight of
3
FORMULAS ! Find the a
person
with a mass
of 54kg on Earth .
needed to convert to
Fret F + F2 + Fz m
54kg 54 9 8 -529 2N
forces incline
planes
-
=
, ...
= x .
= .
on
= t
Fret 9 8 m/sh 329 2 downwards
g
= ma = or
a
-
.
.
Fg =
mg Fg =
-
FN Normal Force :
↑
Frictional force / Drag FN
Applied always perpendicular the surface the object is
Force
- push/pull Fir FD
-
> to on
e ⑧
opposite to
[
Fg and normal force (Fw) oppose one another
acts
FiorT Fg + (m = + a) direction of motion =Fr
Fg
Crate weighs 18 2 kg
Fg 18 2x-9
Person
~
Eg . Added 102ON
180N3
.
= . .
8 = - -
:
weighs 86.0kg Fw 86 9 8 8404
FN (- 1020) = +
-
. =
-
=
- -
= lOZON
Review Q.
t #T
2
Fr 98 .
+ 3 = 29 . 4N a =
sug
2
=
Cry
. 8 x1
9 = 9 8N .
T= 8 . 93N or
* Ask sir now to
·
Fgyz 20 79N
Fa 36N
find tension
=
35 72 8.9N
8
.
= or
Fgocz 10 79N
.
= .
Fgy1 6 93N the slope
up
= .
.
Fgx1 = 6 . 93N
Motion 4 circle
Chapter : in a FORMULAS !
Y
4 1 .
Circular Motion *A
Distance A-A= TY 4 .
1 2
. . a) x -
> =
450280 = 1413 72 .
T= +f = = b) displacement of 900m
Co . In
a v2
6) speed
3 72
.
= 28 .
27 m/s
= towards Cent d) velocity = 18m/
a
F
,
4 . 2
Centripetal force Examples of this :
All forces more towards the centre of the circle+
Turning a corner in a car
·
Obitsopf lanIaccelmon
force
centripetal ↳ and
eration
one
WE Mass
.
4 2 1 .
.
of moon = 7 .
3477x1022kg 2Tx384399403
F = mac
Orbital 2 7230x10 "m/s > x24x60x60
days 2360620 8s
period of
= 360620
2x10IN
Earth = 27 322 .
= .
8
= . =
Frowards Earth
.
A ve
distance/circumference of 384399hm x10 ra
384399x105m
g
1023 14m/s e Towardsth = = .
Chapter S : Gravity Chapter . 6 Orbits
. 1 Newton's Law of Gravitation Motion
5 6 1 Kepler's Law .
of Planetary
FORMULAS ! TYS .
1 3 .
Kepler's Laws
Fg = G MEarth = S .
97x10kg Fg = 16 .
To
6x10 # Planets more in elliptical orbits with the sune focus .
at
G = 6 67 .
= 10-
"NMsun 1 99X1000
.
kg Fg =
3 32 x1022
. N &
. The line
connecting a
planet to the sun
sweeps out equal in equal in tals
are as
Gravitional Field Strength
= k Kepler's constant
*
g
=
E Usun-Earth = 1 . 5x10'm
Farz
formulas
FORMULAS
- includes 5 2 .
constant
a radius
