Physics 2211
Quiz #4 Form #411
Name:
Spring 2007
Version
A
•
Print your name, test form number (3 digits at the top of this form), and student number (9 digit Georgia Tech ID
number) in the section of the answer card labeled “Student Identification.”
•
Bubble the Test Form Number in columns 1–3, skip column 4, then bubble your Student Number in columns 5–13.
•
Free-response questions are numbered I–III. For each, make no marks and leave no space on your card. Show all your
work clearly, including all steps and logic. Box your answer.
•
Multiple-choice questions are numbered 1–6. For each, select the answer most nearly correct, circle this answer on
your test, and bubble it on your answer card. Do not put any extra marks on the card.
•
Turn in your test and answer card as you leave. Your score will be posted under “Course Standing” when it has been
graded. Quiz grades become final when the next quiz is given.
•
You may use a calculator that cannot store letters, but no other aids.
g
Earth
= 9
.
8 m
/
s
2
Unless otherwise directed, all springs and cords are ideal, and drag should be neglected.
I
. (16 points) A small bomb of mass
m
is thrown vertically upward.
When it reaches its maximum height,
it explodes into three parts. Immediately after the explosion, one part, with mass
m/
3, has a velocity of
+200ˆ
ı
+ 200 ˆ
m
/
s. A second part, with mass
m/
6, has a velocity of +400ˆ
ı
-
100 ˆ
m
/
s. What is the velocity
of the third part? (
On Earth.
)
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