Worksheet 33 Interference and Phasors
Iowa State University
Dr. Paula Herrera-Sikldy
L r1 r2 m m 0, 1, 2.
d sin m m 0, 1, 2.
DYNAMICS OF SYSTEMS 0F PARTICLES
Note Title 9/16/2013
thr else? we had (for q Single Particle)
131'! see how me chqnge (if any) for q system of pdrq‘ides
going bad: fa (4)=
. c J
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so uneqr Momentum of q system of Particles é
W’IRT'CLE KWET\C5CDYNAMICS) ENERGW mom ENTUM TECHNIQUES
Seaman’r 1: Ihmduoﬁon
eecqn fhe relationships among farce, dischemenf and war!“
du = 3" dr
for axannple 'm 3'0 cartecian coardl’hqte
dd:- dex*-Fyd\l't ndz.
components of displacement dr in x,y,z
DYNA’MICS OF SYSTEMS OF PARTICLES‘
Lecture 5: T0‘/ example 2.
same qs equpIeI excopf we release i+ from REST at the fonowing posl'ﬁon
. . . ‘ _ B 90
very sumlqr to before (tenswns cansmg "whom m
l_.,=o, eta. ) except I_.,‘ a constant a o
KINEMATICS OF mm BODIES
so let us solve problems w’m; acceleration!
so now we qdd an ace mm W? agqlnmu dn‘srunoes cue known
Vﬁ’VKE-I- 0:), \Ip-"(Ia (0,0);(3'0
MJVO 0.39 “A21.on yF’yB"V°i’
E ‘1? 95 ‘5 '5 “4011
0 (may and (“Q7 are not
Physics Sample Test Items
Radio waves travel at the speed of light, 3.0 x 1010 centimeters per second. How many minutes did it
take the radio signals from the Pioneer satellite passing Saturn to reach Earth when it was 7.6 x 10 8
miles from Earth? Ther
1. The density of Magnesium metal is 1.738 g/cm^3. It crystallizes in a face-centered cubic
structure. What is the volume of the unit cell in liters.
2. One form of silicon has density of 2.33 g/cm and crystallizes in a cubic lattice with a u
Coordination Number (CN) and Radius Ratio
In an ionic structure each cation tends to surround itself with anions; the number
that can be grouped around it will depend on the relative size of the cations and anions.
If you use the analogy of a soccer ball,
Chqp+er I} Mane When 0? Rigid Bodies
$8.9 mBM’l“ Eﬂefg‘l and momentum methods
ROM“ m0 work-ins energy Prfnoip'e for q Parhba‘
Ton + WWI—n —. Tm A - .
worl= done k.E. of— » parhole qr pOIM' 2
If we assume q Rigid Body as q large ooueah'an of
M.L, I given What is w' (w ofrud cﬁer impqcr)
L 9% I given and VB‘ (VOf ball after inpqcr)
WT ug do free body diagrqm.
smce H’ is conison . weyse impulse I momentum
Le- 3 free Body omgrqms! w=0
Ve=o 1—) 5'de V
p! r pinned
4- qudf :- MV; ® “6‘ g
DYNAMICS 0F Rlelo BomES
Segmemﬁﬁ Drum &Fquing Ladder
exqmme - Torque Transmitted
me, La,” "W 1"“
Tame M is qpplieal to drum n ban- (,or chain) has no slip
ﬁnd we IF A reﬁt-ed 3 aides/romﬁon dearly In > T1 (why?)
a: :5) (TB' wk = Incl-s
KINEMATICS OF RIGID BODIES
Titl$engsrxb g 3 8/29/2013
we will place he rmring coar‘diane
on The mm; sth (see Jacob!) -w.\,— wz’j ( why?)
A LP— . .v.
m A a
n. = _.
m = vﬂ X
o A). 3.
ﬂ 3 z W
lo m w _
8 8 _ 0
q a a
A \u. A .F
Department of Mechanical and Aerospace Engineering
Midterm 2 for Dynamics (MAE and CEE 80)
Please make sure you do all your work on this exam (including the blank pages provided).
It would be better to leave symbols instead
Knowing that the coefficient of static friction between the tires and the road is 0.80 for the automobile shown, determine the maximum possible acceleration on a level road, assuming (a) four-wheel drive, (b) rearwheel drive, (c) front-wheel
Four pins slide in four separate slots cut in a circular plate as shown. When the plate is at rest, each pin has a velocity directed as shown and of the same constant magnitude u. If each pin maintains the same velocity relative to the plat
A bullet is fired with a horizontal velocity of 500 mls through a 3-kg
block A and becomes embedded in a 2.5-kg block B. Knowing that blocks A and B start moving with velocities of 3 mls and 5 mis, respectively determine
An estimate of the expected load on over-the-shoulder seat belts is made before designing prototype belts that will be evaluated in automobile crash tests. Assuming that an automobile traveling at 72 km/h is brought to a stop in 110
Note Title 3/2/2012 M
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Iota 70 Tlet' Z M:
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A ahn 9700(
m A ww- o
to. $a "Thu W5 ca 180 mm twang AND
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