Chapter 6. Dynamics I: Motion Along a Line
Chapter 6. Dynamics I: Motion Along a Line
Chapter 6. Dynamics I: Motion Along a Line
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Friction<br />
Static friction:<br />
fs ≤ fs,max<br />
= µ<br />
sn<br />
s<br />
n<br />
µ - coefficient of static friction<br />
- normal force<br />
Find the maximum tension,<br />
T max<br />
y<br />
Equilibrium:<br />
r<br />
r<br />
r<br />
r<br />
r<br />
F = n + w + T + f<br />
=<br />
net<br />
n<br />
− w<br />
=<br />
0<br />
s<br />
0<br />
x<br />
n r<br />
T<br />
r<br />
weight,<br />
friction<br />
tension<br />
− f<br />
+ T<br />
=<br />
s<br />
n = w<br />
f = T ≤<br />
f<br />
0<br />
s s,max<br />
f r w r<br />
s<br />
f = µ n =<br />
µ<br />
w<br />
s,max<br />
s s<br />
normal<br />
Condition of equilibrium:<br />
T<br />
≤<br />
µ w<br />
s<br />
T<br />
max<br />
=<br />
µ w<br />
s<br />
9
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