CAMBRIDGE A2 L PHYSICS DETAILED NOTES - CIRCULAR MOTION

CIRCULAR MOTION

B)aSTC linear
I
displacement


Biost.
&) escriptions g

a
O



of L
linear angular Tangential I
A
*inematics
5 =
r@
v =
↑e




*




Angular r0 /
radius x
Displacement Distance travelled
angular displacement
=
-




angle subtended at the centre of
circle where its are
to its radius
length
equals

Rate of change of angular displacement
Anguar
angle for I full
AR 24 g
velocity & W = =
=> I period &I




unit: rads"/mint

360 =
*
24 (rad) *oafter t

, Linear speed at a
position
Tangential S = rO
Note:



viii) ai: ra
velocity


unit Mg+ =




linear
displacement
final
centripetal
Acceleration
&
linear

& Er O
v = rl
angular
"Boas o Tangeniis


centripetal
Force




M
-> ->

7
a