Kinetic and Static Friction
AP Physics 1 · Flashcards · Application
AP PHYSICS 1 · FLASHCARDS
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QUESTION
Find the maximum static friction if
μ
s
=
0.4
\text{μ}_s = 0.4
μ
s
=
0.4
and
N
=
50
N
N = 50 \text{ N}
N
=
50
N
.
QUESTION
Find the normal force if
m
=
10
kg
m = 10 \text{ kg}
m
=
10
kg
and
g
=
9.8
m/s
2
g = 9.8 \text{ m/s}^2
g
=
9.8
m/s
2
on a flat surface.
QUESTION
If
f
k
=
10
N
f_k = 10 \text{ N}
f
k
=
10
N
and
N
=
50
N
N = 50 \text{ N}
N
=
50
N
, find
μ
k
\text{μ}_k
μ
k
.
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ANSWER
μ
k
=
0.2
\text{μ}_k = 0.2
μ
k
=
0.2
. Using
μ
k
=
f
k
/
N
=
10
/
50
=
0.2
\text{μ}_k = f_k/N = 10/50 = 0.2
μ
k
=
f
k
/
N
=
10/50
=
0.2
.
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