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PHYSICS
1D03
TEST 2
November 17, 2004
Instructors:
A. Jopko (section C01)
N. McKay (sections C02, C03)
D. Venus (section C04)
K. Sills(section C05)
Name ____________________________________
Student Number ___________________________
Instructor:_______________________________
Lecture Section:________________
Write your name and student number on your paper before you begin.
Multiplechoice questions are worth 2
marks each (only the answer is marked), and problems are worth 3 marks each (clear solutions required).
Only the McMaster standard calculator (
Casio fx991
) is allowed.
Notes and formula sheets are not permitted.
A sheet of formulae is attached at the end of the test paper.
If you use them it is your responsibility to know
what they mean and when they can be used.
Earth’s gravitational field:
g
= 9.81 m/s
2
1—9
(18)
10
(3)
11
(3)
12
(3)
13
(3)
Total
(30)
I
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Part A (multiple choice):
Print the letter corresponding to the best or most nearly correct answer in the
box beside each question.
Each correct answer is worth 2 marks.
1.
A rod has one end at the origin and one end at the point
P
whose coordinates are (1m, 2m, 2m). A force
F
= (3
i
+2
j
1
k)
N acts on the rod at the point
P
.
The torque about the origin due to
F
is:
A)
(6
i
+ 7
j
 4
k)
N
⋅
m
B)
(6
i
 7
j
 4
k)
N
⋅
m
C)
(6
i
 7
j
+ 4
k)
N
⋅
m
D)
none of the above.
answer
2.
A uniform bar of length L weighs 24 N.
It rests in a horizontal
position, attached to a hinge at one end, and supported by a vertical wire
attached a distance ¾ L from the hinge.
What is the tension in the wire?
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 Spring '08
 N. MCKAY
 Physics, Force, Mass

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