Home
Random
Log in
Settings
Donations
About Wikibooks
Disclaimers
Search
FHSST Physics/Collisions and Explosions/Summary
Language
Watch
Edit
<
FHSST Physics
|
Collisions and Explosions
The Free High School Science Texts:
A Textbook for High School Students Studying Physics
Main Page
-
<< Previous Chapter (Work and Energy)
-
Next Chapter (Newtonian Gravitation) >>
Collisions and Explosions
Tiny, Violent Collisions
-
Types of Collisions
-
Explosions
-
Energy and Heat
-
Important Equations and Quantities
Important Equations and Quantities
edit
Table 8.1:
Units commonly used in Collisions and Explosions
Units
Quantity
Symbol
Unit
SI base units
Direction
velocity
v
→
{\displaystyle {\overrightarrow {v}}}
--
m
s
{\displaystyle {\frac {\mbox{m}}{\mbox{s}}}}
or
m
⋅
s
−
1
{\displaystyle \ \ {\mbox{m}}\cdot {\mbox{s}}^{-1}}
yes
momentum
p
→
{\displaystyle {\overrightarrow {p}}}
--
kg
⋅
m
s
{\displaystyle {\frac {{\mbox{kg}}\cdot {\mbox{m}}}{\mbox{s}}}}
or
kg
⋅
m
⋅
s
−
1
{\displaystyle \ \ {\mbox{kg}}\cdot {\mbox{m}}\cdot {\mbox{s}}^{-1}}
yes
energy
E
J
kg
⋅
m
2
s
2
{\displaystyle {\frac {{\mbox{kg}}\cdot {\mbox{m}}^{2}}{{\mbox{s}}^{2}}}}
or
kg
⋅
m
2
⋅
s
−
2
{\displaystyle \ \ {\mbox{kg}}\cdot {\mbox{m}}^{2}\cdot {\mbox{s}}^{-2}}
no
Momentum:
p
→
=
m
v
→
{\displaystyle {\begin{matrix}{\overrightarrow {p}}=m{\overrightarrow {v}}\end{matrix}}}
(8.13)
Kinetic energy:
E
k
=
1
2
m
v
→
2
{\displaystyle {\begin{matrix}E_{k}={\frac {1}{2}}m{\overrightarrow {v}}^{2}\end{matrix}}}
(8.14)