yuan (yy3554) – HW #11 – Antoniewicz – (57380)
1
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20
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001(part1of2)5.0points
A uniform horizontal beam of weight 468 N
and length 4
.
14 m has two weights hanging
from it.
One weight of 368 N is located
1
.
23372 m from the left end; the other weight
of 268 N is located 1
.
23372 m from the right
end.
What must be the magnitude of the one
additional force on the beam that will produce
equilibrium?
Answer in units of N.
002(part2of2)5.0points
At what distance from the left end must this
force be applied for the beam to be in equilib
rium?
Answer in units of m.
003(part1of4)3.0points
Two weights are suspended as shown in the
diagram.
On the left, a weight of 110 N is
suspended from its upper left by a string of
tension
T
1
angled at 51
◦
with the horizontal.
A string carrying tension
T
2
is stretched be
tween them angled at 12
◦
with the horizontal.
On the right, the unknown weight
W
2
is also
suspended from its upper right by a string of
tension
T
3
angled at 47
◦
with the horizontal.
110 N
W
2
12
◦
T
2
T
1
T
3
47
◦
51
◦
What is the tension
T
1
?
The acceleration
of gravity is 9
.
8 m
/
s
2
.
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 Spring '07
 Holcombe
 Chemistry, Force

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