distance
S
KEY
initial velocity
velocity
u
final
✓
POINTS
horizontal
does NOT
acceleration
A
T
vertical
time
7
✓✗
g)
,
a=
Vy
-0
✓ sin
-
-
-
9.81
W= Fscoslt
•
T \
T
freebody
↳
add up
diagrams
✗
all
find
vectors to
by
,
there
is NO acceleration
d
EQUILIBRIUM
at
stay
is
change of
of
equal
↳
momentum
F- Ma
^
3rd law
has
every
:
=
Mgh
Doc
Ik
=
En
'
'
)
+
Ep
opposite
tone
p
F
/
cos
.
.
-
i
=
←
C.
sin
①
D-
✗
-0
W
mgsinobff-pRR.mg#Fs--mgsi:;÷=÷=+an
nO---pxmgcosO.:
!!!
d
p=mv
is
momentum
CONSERVED !
units
=
µ:
Fu
-
FAT
in
=
Dp
Fat
-0
:
!
momentum
>
W
mgcos
=
⇐
v.IE
✗
Wit
-
a
W=mg
=
↳ change
mold
-0 )
we
power
impulse
ffs
R
IS
I
is
perpendicular
the surface!
force)
to
power
☒
•
to
ENERGY
CONSERVED
always
PROPORTIONAL
reaction force
Emv
action
and
equal
an
reaction
is
-
( spring
ET
energy
-
=
=
between
-
Weight ( Fw)
friction tone
Ep
•
AND
( reaction /normal
v
Ep
to
•
opposes
motion !
←
Eh
•
•
tone
:
friction
yr
y→
won done
•
reaction
f- f-
applied
done
constant ✓
angle
←
displacement
force
work
resultant force
a
law
rate
-
will
at rest unless acted
or
2nd
&
object
in motion
on
NET force
if f- net -0
1st law :
!
a=o
accelerate !
VCOSO
=
accelerate
DOES
Ns
at
-
-
op