F ENGLAND GE
radians
·
: angle-lengt
t
o
o
for small
angles
angle-height/radius
( <
°
10 or
-
O Irad)
because height
0 =
- =
arc
length =
·
O = sin
angular velocity-rate of change of
angular displacement
>
-
co =
radians per second
A
↑
RULES
1) angular velocity-angle rotated per second
j P angular velocity = rare of change of angle
= averageeaneous
·
W
D
%
↓ ↓
G =timeGooaOrion
g
-
-v =
r
an object can
only move in a circular motion at a constant speed
if it accelerates
centripetally
-
T
Ef
N2L
seeking
: =
ma centre
: must be a
centriperal resultant force
radians
·
: angle-lengt
t
o
o
for small
angles
angle-height/radius
( <
°
10 or
-
O Irad)
because height
0 =
- =
arc
length =
·
O = sin
angular velocity-rate of change of
angular displacement
>
-
co =
radians per second
A
↑
RULES
1) angular velocity-angle rotated per second
j P angular velocity = rare of change of angle
= averageeaneous
·
W
D
%
↓ ↓
G =timeGooaOrion
g
-
-v =
r
an object can
only move in a circular motion at a constant speed
if it accelerates
centripetally
-
T
Ef
N2L
seeking
: =
ma centre
: must be a
centriperal resultant force
