6.1.
Model:
We can assume that the ring is a single massless particle in static equilibrium.
Visualize:
Solve:
Written in component form, Newton’s first law is
()
net
1
2
3
0 N
xxxx
x
FF
T
T
T
=Σ
=
+
+
=
( )
net
1
2
3
0 N
yyyy
y
T
T
T
=
+
+
=
Evaluating the components of the force vectors from the freebody diagram:
11
2
xx
TT
T
=−
=
33
cos30
x
=
°
1
y
T
=
22
y
=
sin30
y
=
−°
Using Newton’s first law:
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This note was uploaded on 12/10/2011 for the course PHYS 1211 taught by Professor Geller during the Fall '09 term at UGA.
 Fall '09
 geller
 Mass, Static Equilibrium

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