UD Phys207W09
Quiz 6
Name
A
A
SIN
e
n
4.4/
You must show all of your work for credit. Include units with your numerical answers.
iL,,,,
_j__
/m
,
P'
[3] Find the center of mass of the object shown below.
—
/* ,
,
,
("Z„ ( (rt—,
?‘
' —f
p
t
T )
er2. = 3
3
'
7
+60
it
(9
_
"
A /
63"
17\2
A,
•
A 2
2.
=b
1
=
6

2.
A
Lty vmt
a
`646
_22
f
„
_
I z_
m
rc,„ =
+9))
+ 1
3
2.
I
),
A/
(
")
3
j 011
33
[7] An airplane of mass M, in some coordinate system, traveling at a velocity of
v„=voj
suddenly explodes midair. The plane breaks up into 3 pieces, and from where the two
pieces land they can tell that one piece with a mass m
i
=(1/5)M had a velocity of v1=2v
0
i
immediately after the explosion and the other piece with a mass of m
2
=(2/5)M had a
velocity of
v
2
=3v
0
j immediately after the explosion . It turns out that this airplane was
transporting a very valuable diamond, and it was stored in a safe located in the other piece
of the plane that has yet to be found. Determine the velocity in unit vector notation
of the
final piece, v
3
,
so that the final piece of the plane and hence the diamond can be found.
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 Winter '09
 Castro
 Physics, Center Of Mass, Mass, Work

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