PHY-Lab 6
docx
keyboard_arrow_up
School
Camden County College *
*We aren’t endorsed by this school
Course
201
Subject
Aerospace Engineering
Date
Dec 6, 2023
Type
docx
Pages
2
Uploaded by DeanFangLoris38
Tu Pham
Lab 6: Centripetal Acceleration
1.
Objective: To prove that the centripetal and centrifugal forces are equal in magnitude and
opposite in direction for an objective preforming circular motion.
2.
Tools: Ruler, Mass hanger, Timer, Centripetal acceleration equipment (e.g., a string, a bob, and
an indicator)
3.
Procedure:
1) Measure the mass of the bob.
2) Lock the indicator securely and ensure it is positioned below the tip of the bob.
3) Measure the length (radius) from the center of rotation to the tip of the bob.
4) Connect the spring to the bob.
5) Measure the time taken for the bob to
complete 20 oscillations. Start the timer
when the bob passes a reference point and
stop it after 20 oscillations are completed.
6) Add mass to the mass hanger until the tip
of the bob just touches the indicator. Record
the total mass, including the mass of the
hanger.
7) Perform another run with an additional
100g of mass added to the bob.
8) Change the radius (length of the string)
and repeat two runs.
1
Tu Pham
4.
Data:
Mass (g)
R
m
= 457.47
R (m)
T
20
(s)
T
exp
(s)
V
(m/s)
F
c
(N)
S
m
(kg)
F
g
(N)
%
Error
R
m
=457.47=0.45747kg
0.212
13.44
0.672
1.98
8.48
0.750
7.35
13.3%
R
m
+100=557.47=0.55747kg
0.212
14.93
0.7465
1.78
8.37
0.750
7.35
12.2%
R
m
=457.47=0.45747kg
0.171
17.85
0.8925
1.20
3.88
0.350
3.43
11.5%
R
m
+100=557.47=0.55747kg
0.171
18.27
0.9135
1.18
4.51
0.350
3.43
23.9%
R
m
(kg) revolving mass
R (m) radius
T
20
(s) average time of 20 oscillations
S
m
(kg) stretching mass
T
exp
(s)
¿
T
20
20
v
(
m
/
s
)=
2
πR
T
exp
Centripetal force F
c
¿
Mass×v
2
R
Centrifugal force F
c
= S
m
g
%Error
¿
|
F
c
−
F
g
|
F
c
×
100%
5.
Result:
The experiment aimed to demonstrate the equality in magnitude and opposite direction of centripetal
and centrifugal forces in circular motion.
When maintaining a constant radius, the centripetal and
gravitational forces were found to be approximately equal, with a percent error ranging from 11.5% to
13.3%, indicating their close equivalence. However, a significant increase in percent error (23.9%) was
observed, possibly due to factors like timing.
6.
Conclusion:
Multiple trials were conducted, varying mass and radius, followed by data analysis. It was evident that
the mass of the bob and additional weights impacted both centripetal and gravitational forces. This
experiment provides evidence that centripetal and centrifugal forces can approach equality under
specific conditions, although variations in parameters such as mass and radius can introduce
discrepancies.
2
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help