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ME 274 – Summer 2010
Name
(Print)
Examination No. 2
(Last)
(First)
July 28, 2010
Lecture Seat #
INSTRUCTIONS
Begin each problem in the space provided on the examination sheets. If additional space is
required, use the paper provided to you.
All problems are of equal value and will be graded on the basis of 20 points maximum.
Please remember that in order for you to obtain maximum credit for a problem, the
solution must be clearly presented, i. e.:
•
coordinate systems used must be clearly identified.
•
where ever appropriate, free body diagrams must be drawn. These should be
drawn separately from the given figures.
•
units must be clearly stated as part of the answer.
•
vectors must be clearly identified with proper vector notation (e.g.,
v
,
v
or
v
)
If the solution does not follow a logical thought process, it will be assumed in error.
Prob. 1
Prob. 2
Prob. 3
Prob. 4
TOTAL

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*Sign up*ME 274 – Summer 2010
Name
Examination No. 2
PROBLEM NO. 1
Given
:
System released from rest with
!
=
36.87
°
. Consider the bar and the disk to
be homogeneous.
Find
:
Determine the
angular velocity
of the bar when
=
0
.
Use:
m
=
100
kg
,
L
=
2
meters
and
R
=
0.4
meters
.
Please clearly indicate the four steps in a neat and orderly presentation of your work.
R
m, L
m
!
smooth
no slip
g
B
A
massless
block
B
A

ME 274 – Summer 2010
Name
Examination No. 2

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