The notes for the physics lab on centripetal motion explore the principles governing the motion of an object traveling in a circular path. Key topics include the relationship between centripetal force, mass, velocity, and radius, as well as the role of tension, gravity, or friction in providing the...
occurs anytime an object m ove s in a circular path how are v ,
R ,
a T related
·
when a n object has constant speed a uniform circular motion
v is proportional to R
·
uniform circular motion v is inversely proportional to T
·
the velocity vectors all have the same magnitude a point tangential to the circle R is proportional to T
·
constant magnitude but changing direction
h ow to make the graph linear
↳ this means there is acceleration
mr
&
function : F =
Vf
relating to y = my + b
r it ri -vi vi F =
y
m
O
m =
r #
,
DV r
ri
Ar =
rf -
ri DV =
Vf
-
Vi X = v2
points up 3 left points towards b = force when velocity = 0
center of
to make the graph linear we need to plot v2 & NOT V
circle
straight line analysis
·
·
the two triangles are isosceles triangles
bic both radius a velocity vectors are the s a m e i n magnitude
·
&
·
the two triangles are also similar bic its angles are congruent M
sides on either side of the angle are also
8
↳ the same equal i n proportion
deriving a
·
velocity ?
·
based on geometric rule we can relate the radius a velocity
the slope of the graph represents
Ap
DV m in units of kglm
=
r
avadivide the intercept of the graph represents the force when =
v =
0
solve for at
by
·
↳ however i n this lab we had a starting uncertainty for the
Ar
Vr =
V =
* V =
force so it represents the uncertainty
At
our expected slope result is
calculating mir
↳ whour measured mass a radius
question 4
·
our expected intercept is the uncertainty the software provided
what is the magnitute of the force responsible ford c ?
·
uncertainty
F mac =
mv
=
AF
mr
=
there i s no
single force that is centripetal force
·
AVI = 2V .
AV
·
multiple forces combine to cause centripetal acceleration
AmV2 = Am .
V2 + 2VDV .
M
·
unlike gravity
va
my
m
Gr
DF m + 2VAV
question S
. .
·
=
.
.
mu
what causes ac ?
1 swinging ball on string
tension
. earth
2 orbiting
gravity
.
3 cararound curve
friction
4 .
Kid on a swing
tension
question G
·
·
what is the velocity i n ter ms of r a T
T = period
Since velocity = distance ,
the distance is the circumference
time
&
2πr
v =
T
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller bernadinegurning1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.49. You're not tied to anything after your purchase.
