- Source: Surface force
Surface force denoted fs is the force that acts across an internal or external surface element in a material body.
Normal forces and shear forces between objects are types of surface force. All cohesive forces and contact forces between objects are considered as surface forces.
Surface force can be decomposed into two perpendicular components: normal forces and shear forces. A normal force acts normally over an area and a shear force acts tangentially over an area.
Equations for surface force
= Surface force due to pressure
=f
s
=
p
⋅
A
{\displaystyle f_{s}=p\cdot A\ }
, where f = force, p = pressure, and A = area on which a uniform pressure acts
Examples
= Pressure related surface force
=Since pressure is
f
o
r
c
e
a
r
e
a
=
N
m
2
{\displaystyle {\frac {\mathit {force}}{\mathit {area}}}=\mathrm {\frac {N}{m^{2}}} }
, and area is a
(
l
e
n
g
t
h
)
⋅
(
w
i
d
t
h
)
=
m
⋅
m
=
m
2
{\displaystyle (length)\cdot (width)=\mathrm {m\cdot m} =\mathrm {m^{2}} }
,
a pressure of
5
N
m
2
=
5
P
a
{\displaystyle 5\ \mathrm {\frac {N}{m^{2}}} =5\ \mathrm {Pa} }
over an area of
20
m
2
{\displaystyle 20\ \mathrm {m^{2}} }
will produce a surface force of
(
5
P
a
)
⋅
(
20
m
2
)
=
100
N
{\displaystyle (5\ \mathrm {Pa} )\cdot (20\ \mathrm {m^{2}} )=100\ \mathrm {N} }
.
See also
Body force
Contact force
References
Kata Kunci Pencarian:
- Ocean Surface Topography Mission
- NASAMS
- Tekanan
- Komandan militer
- Microsoft Surface 2
- Kapal pemimpin
- Bandar Udara Internasional Tulsa
- Potensial elektrode
- Amerika Serikat
- Selandia Baru
- Surface force
- Commander, Naval Surface Force Pacific
- Surface tension
- People's Liberation Army Navy Surface Force
- Contact force
- Surface forces apparatus
- Surface combatant
- Normal force
- People's Liberation Army Navy
- Atomic force microscopy
The Abyss (1989)
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James Cameron
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