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Physics Kinematics

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Trig-based physics kinematics with solved practice problems.

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Displacement vs path length

path length s or l is a scalar which only has a magnitude not a
direction distance transversed

how many meters were transversed

displacement Δx̅ is a vector which has both magnitude a
direction

change in position Δx̅ If Ji
death s this natiths initial
displacement can also be Δ or of
different path lengths


Wfp samedisplacement


scalar only has magnitude
Pg diff
ex 10 9m or 50km

displacement is a vector magnitude direction
ex Δx̅ 15.6m to left
Δ 34.0m down
08 45.0m at 530standard position
of 9.54 km at 190 east of north

average velocity vs average speed
avg speed is scalar
avg speed path length
time elapsed
Ot

, avg velocity is a vector
Varg
5
displacement ti
aug velocity tf
time

instantaneous velocity
avg velocity over an
infsigipesiyaf.us inrtutsirymeinEfe
can instant
i

instantaneous speed

magnitude of velocityvector
at some moment car travels 46.0 mph due west

due west
5 1 8
acceleration
how rapidly the velocity of an object is changing how rapidly the
object is speeding up slowing down


a.rs
instantaneous acceleration

11508
constant acceleration means 8 8avg
acceleration
in a ID problem

, N
practiceproblem
27.0m E t 18.0m E
27m 8m
path length 45.0m w

displacement 45.0m east

S N

problem 2

27.0MW 18.0 ME WE.EE E

path length 45.0m
Issimetitector
displacement 9.0m west or 9.0m


problem 3 2 585 tañ
27m south 18 meast
W E
pathlength 45.0m
32.4m
displacement
32.41a9 rootposition
33.60 east of south s
560 south of east
o
problemu taiga ftp.t Eoinstantaneousv
for 10.05 ΔV 15ms
acceleration 1.5m
X for 10.0s or 15ms
acceleration 1.5m

Document information

Uploaded on
June 21, 2025
Number of pages
18
Written in
2024/2025
Type
Class notes
Professor(s)
Dr.pok
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