121
TO
:9
3
4
8
(765
O.IN
1 cm -0.1N
F = F, + E
180mm
X son = 1.80.
LAB 4 - FORCE TABLE & VECTORS
1 F / 2098N
2
子 B, 2, Bag
(Re Ry
| R = Rp2 t Ry
43°
PR-
1.8N @43°
o = tan! (R)
0.980 lcm
TXO.IN
F = 9.8cm
= 18cm
=19.6cm
ke
R = x + Bx +G + De
.
F2 = 19.6 cm
71 29.8mm
l
| Al.cos(0)+ Vel.cos(0+ 1èl.cos @+Tol.co (B).
Det
os
yt Byt Cyt Dy
Sin (0) + 18). Sin (6)+ lel.sin(x) + lol.sin (B).
40
Physics Laboratory Menu Loyd
Analytical Solution
Force
Mass (g)
Mass (kg)
Force (N)
N
Direction
x component
y component
F
100
0.100
20.0
F2
200
0.200
90.0
Resultant Fri
%
PART 1. ERROR CALCULATIONS
Percent error magnitude experimental compared to analytical =
Percent error magnitude graphical compared to analytical =
Absolute error in angle experimental compared to analytical =
Absolute error in angle graphical compared to analytical =
%
_degrees
degrees
Calculations Table 2
Graphical Solution
Force
Mass (g)
Mass (kg)
Force (N)
Direction
F3
150
0.150
30.0°
F4
200
0.200
100.0
Fs
100
0.100
145.00
Resultant FR2
Analytical Solution
Force
Mass (8)
Mass (kg)
Force (N)
Direction
x component y component
F3
150
0.150
30.0
F4
200
0.200
100.0
F5
100
0.100
145.0
Resultant FR2
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Laboratory 3 Force Table and Vector Addition of Forces
41
%
PART 2. ERROR CALCULATIONS
Percent error magnitude experimental compared to analytical =
Percent error magnitude graphical compared to analytical =
Absolute error in angle experimental compared to analytical =
Absolute error in angle graphical compared to analytical
%
_degrees
_degrees
QUESTIONS
1. To determine the force acting on each mass it was assumed that g=9.80m/s². The value of g at the
place where the experiment is performed may be slightly different from that value. State what effect (if
any) it would have on the percentage error calculated for comparisons. To test your answer to the
question, leave g as a symbol in the calculation of the percentage error.
2. Two forces are applied to the ring of a force table, one at an angle of 20.0, and the other at an angle of
80.0°. Regardless of the magnitudes of the forces, choose the correct response below.
The equilibrant will be in the (a) first quadrant; (b) second quadrant; (c) third quadrant; (d) fourth
quadrant; (e) cannot tell which quadrant from the available information.
The resultant will be in the (a) first quadrant; (b) second quadrant; (c) third quadrant; (d) fourth
quadrant; (e) cannot tell which quadrant from the available information.
3. Two forces, one of magnitude 2 N and the other of magnitude 3 N, are applied to the ring of a force
table. The directions of both forces are unknown. Which best describes the limitations on R, the
resultant? Explain carefully the basis for your answer.
(a) R55N (b) 2 NSRS3N (c) RX3N (d) 1 NSR55N (e) RS2N
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het and
Copyright 2012 Cepage Learning. All Rights Reserved. May nat be copied, and a duplicated in tale se la port. De cranic nights, this party
Bewertunay the real aming experience. Can Learning nerve the right to reace addical and at any time i beqan rights restriction equire
42
Physics Laboratory Manual Loyd
4. Suppose the same masses are used for a force table experiment as were used in Part 1, but each pulley is
moved 180 so that the 0.100 kg mass acts at 200, and the 0.200 kg mass acts at 270°. What is the
magnitude of the resultant in this case? How does it compare to the resultant in Part 12
5. Pulleys introduce a possible source of error because of their possible friction. Given that they are a
source of error, why are the pulleys used at all? What is the function of the pulleys?
Copyright 2012 Copa Learning. All lights Reserved. Maynat be copiedad deplicated, use seis port. De deconges, this party
Bewertunay
tyy he app to the
хи естацтатую
at the real aming price Caring reserve the right to remedial contar tune if sabapan rights restricte
•.000 T-Mobile
9:49 AM
1 67%
Announcements
Assignment(s) Notes for Force Table & Vectors
MORCAN
Remember, there is to be no copying among yourselves, or plagiarism.
You can discuss among yourselves what's needed and the generally approach to solving a problem(s).
Under no circumstances are you to allow another student to look at your work/lab report, or copy from it (in part or in it's entirety).
The only absolute similarities between group members should be group data.
#1 Lab Rule: Do NOT show your work, lab manual report, or calculations to anyone!
You have been warned...
Full lab manual document submission for
205 S104
1. Complete lab report material for lab:
"Force Table, Vector Addition (chap. 3)"
Due on Tuesday 06/20/17 )
a) Make sure the name, section number, date and lab partners entry is filled out. V
b) Make sure Data & Calculations (Graphical & Analytical) Table 1 is completed. V
c) Make sure the four (4) calculations of Part 1 - Error Calculations is done. Please show
these simple calculations on a separate page if need be. V
d) Please submit the graphical solution page as well. One drawing page per group. However,
every student has to submit their own completed lab material. ✓
e) Answer post-lab questions 2, 3, 4 & 5 only. V
Other relevant information.
1. Side Note: The next lab on the lab schedule is: "Newton's 2nd Law: Atwood's Machine".
I.
I will give you all lab documentation for this next lab.
II. Therefore, there is NO pre-lab for this next lab.
Additional note(s) on completing this lab:
1. DO NOT DO anything that deals with Part 2 (3 vectors). V
2. As an example:
Abs. Err. = 8exp. - Canaly
3. You should do sample calculation(s) where needed (analytical/trigonometric calculations etc.),
so that I can see that you understand the mathematical process. Neatness and finesse is always
appreciated.
LET ME KNOW IF YOU ALL HAVE ANY OTHER QUESTIONS:
Click here to send me an email (Prof. A. Johnson)
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attachment