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Putnam
1954 Putnam
A4
A4
Part of
1954 Putnam
Problems
(1)
Putnam 1954 A4
Source: Putnam 1954
7/17/2022
A uniform rod of length
2
k
2k
2
k
and weight
w
w
w
rests with the end
A
A
A
against a vertical wall, while the lower end
B
B
B
is fastened by a string
B
C
BC
BC
of length
2
b
2b
2
b
coming from a point
C
C
C
in the wall above
A
.
A.
A
.
If the system is in equilibrium, determine the angle
A
B
C
.
ABC.
A
BC
.
Putnam
angle
physics