Kinematics Notes - AP Physics 1

Reference Frames/ Points
reference frame is considered for
purposes of
> a
any space stationary the measurement

> fixed point


Position ,
Distance,
Displacement
>
position Ñ is a vector that describes
exactly where
you're located
> distance d is that describes how far traveled , of direction
a scalar
you've regardless
>
displacement Ad→ is a vector that describes
your change in position
•
where are in relation to where started
you you
•
Add = final -
initial ( d→f - Ñ ;)


Speed & Velocity
>
speed v is a scalar that describes how fast
something moves in m/s
>
velocity Ñ is a vector that describes how fast + which direction something moves in m/s
•

properly described as the rate of
change of position

sat
Types Velocity
of
ÑY=F
>
average velocity Tong given by displacement time
•
if same for all time intervals then it becomes constant Ñ =




4 Common Curves On Position Vs Time Graphs


d- ñ ai ai


t t t t




Acceleration
> the rate of of
ñ=ˢ¥ hÉ=a
change velocity

, Position vs Time Graph Velocity vs Time Graph


a- i


o t o t




Equations for Velocity




}
Ñavg =
( ñ;)
recall that Ñ=vt

d- = t combine the two . . .




Ñ Fit 1- ztati
=




Equations for Acceleration
, . , , ,
,
a-
=É
Ñf2=J ? + 2ñÑ
rearranged
£
Jia -1+5; →
Tf Tita -1
-
_




Practice Questions What is the of the
displacement plane
Ti = 50.0m / s
Ñj = -1
when it comes to a
stop ? 13
ways
)
a-

Ñf
=
-5.0mF § a


1 Ñ=Ñi+Ñ)t
omygggmo.gg/s-
250m
/
0.0m S
=
.
=
=
, 2
I ?
↳
=




2. Ñ=Ñt+ÉÉt2= 250m
+ =
10.5


V%=Ñ ? Zaid d- Ji Ji
Ñ
-




3. ,
+ → =

Zai
→ = 250m