Kinetic and Static Friction
AP Physics C Mechanics · Flashcards · Application
AP PHYSICS C MECHANICS · FLASHCARDS
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QUESTION
Find the static friction force if
μ
s
=
0.4
\mu_s = 0.4
μ
s
=
0.4
and
F
n
=
200
N
F_n = 200 \text{N}
F
n
=
200
N
.
QUESTION
If
f
k
=
50
N
f_k = 50 \text{N}
f
k
=
50
N
and
F
n
=
250
N
F_n = 250 \text{N}
F
n
=
250
N
, find
μ
k
\mu_k
μ
k
.
QUESTION
Determine the limiting static friction if
μ
s
=
0.5
\mu_s = 0.5
μ
s
=
0.5
and
F
n
=
100
N
F_n = 100 \text{N}
F
n
=
100
N
.
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ANSWER
f
s
=
50
N
f_s = 50 \text{N}
f
s
=
50
N
. Maximum static friction is
μ
s
F
n
=
0.5
×
100
=
50
\mu_s F_n = 0.5 \times 100 = 50
μ
s
F
n
=
0.5
×
100
=
50
N.
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