77777
77777
Instructor(s):
Profs. D. Acosta, H. B. Chan, P. Hirschfeld
PHYSICS DEPARTMENT
PHY 2053
Exam 1
February 17, 2010
Name (print, last ﬁrst):
Signature:
On my honor, I have neither given nor received unauthorized aid on this examination.
YOUR TEST NUMBER IS THE 5DIGIT NUMBER AT THE TOP OF EACH PAGE.
(1)
Code your test number on your answer sheet (use lines 76–80 on the answer sheet for the 5digit number)
.
Code your name on your answer sheet.
DARKEN CIRCLES COMPLETELY
. Code your UFID number on your
answer sheet.
(2) Print your name on this sheet and sign it also.
(3) Do all scratch work anywhere on this exam that you like.
Circle your answers on the test form.
At the end of the
test, this exam printout is to be turned in. No credit will be given without both answer sheet and printout.
(4)
Blacken the circle of your intended answer completely, using a #2 pencil or blue
or black
ink
. Do not
make any stray marks or some answers may be counted as incorrect.
(5) The answers are rounded oﬀ. Choose the closest to exact. There is no penalty for guessing.
(6)
Hand in the answer sheet separately.
Constants
g
= 9
.
80 m/s
2
1. A book with mass 1.0 kg is initially at rest on a rough horizontal table. It is set into motion when a constant horizontal
force of 3.0 N is applied to it. If the coeﬃcient of kinetic friction between the book and the table is 0.2, ﬁnd the distance
traveled by the book in 2.0 seconds.
(1) 2.1 m
(2) 6.0 m
(3) 3.9 m
(4) 1.0 m
(5) 9.8 m
2. A book with mass 1.0 kg is initially at rest on a rough horizontal table. It is set into motion when a constant horizontal
force of 4.0 N is applied to it. If the coeﬃcient of kinetic friction between the book and the table is 0.3, ﬁnd the distance
traveled by the book in 2.0 seconds.
(1) 2.1 m
(2) 8.0 m
(3) 5.9 m
(4) 1.0 m
(5) 9.8 m
3. A book with mass 2.0 kg is initially at rest on a rough horizontal table. It is set into motion when a constant horizontal
force of 3.0 N is applied to it. If the coeﬃcient of kinetic friction between the book and the table is 0.1, ﬁnd the distance
traveled by the book in 2.0 seconds.
(1) 1.0 m
(2) 3.0 m
(3) 2.0 m
(4) 0.52 m
(5) 9.8 m
4. A plane ﬂies at an altitude of 400 meters above the ground at a velocity of 50 m/s in the horizontal direction. The
pilot releases a parcel when the plane is directly above a camper. How far does the camper need to walk from his initial
position to retrieve the parcel?
(1) 450 m
(2) 400 m
(3) 81 m
(4) 6.4 m
(5) 9.0 m
5. A plane ﬂies at an altitude of 200 meters above the ground at a velocity of 50 m/s in the horizontal direction. The
pilot releases a parcel when the plane is directly above a camper. How far does the camper need to walk from his initial
position to retrieve the parcel?
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 Spring '06
 Buchler
 Physics, Force, Friction, m/s, 30◦, 30.0◦, UFID

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